]> git.openstreetmap.org Git - rails.git/blobdiff - vendor/assets/iD/iD.js
Update to iD v2.19.6
[rails.git] / vendor / assets / iD / iD.js
index 4acb400030f075a0e55061fd09744c0fb806bb56..24cb83d9fde13bd007f17358c2acda98dc09a2d5 100644 (file)
@@ -2,10 +2,6 @@
 
        var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
 
-       function getDefaultExportFromCjs (x) {
-               return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
-       }
-
        function createCommonjsModule(fn, basedir, module) {
                return module = {
                        path: basedir,
 
        // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
        var global_1 =
-         // eslint-disable-next-line no-undef
+         /* global globalThis -- safe */
          check(typeof globalThis == 'object' && globalThis) ||
          check(typeof window == 'object' && window) ||
          check(typeof self == 'object' && self) ||
          check(typeof commonjsGlobal == 'object' && commonjsGlobal) ||
-         // eslint-disable-next-line no-new-func
+         // eslint-disable-next-line no-new-func -- fallback
          (function () { return this; })() || Function('return this')();
 
        var fails = function (exec) {
@@ -42,7 +38,7 @@
          }
        };
 
-       // Thank's IE8 for his funny defineProperty
+       // Detect IE8's incomplete defineProperty implementation
        var descriptors = !fails(function () {
          return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
        });
@@ -54,7 +50,7 @@
        var NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);
 
        // `Object.prototype.propertyIsEnumerable` method implementation
-       // https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable
+       // https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
        var f = NASHORN_BUG ? function propertyIsEnumerable(V) {
          var descriptor = getOwnPropertyDescriptor(this, V);
          return !!descriptor && descriptor.enumerable;
        // fallback for non-array-like ES3 and non-enumerable old V8 strings
        var indexedObject = fails(function () {
          // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
-         // eslint-disable-next-line no-prototype-builtins
+         // eslint-disable-next-line no-prototype-builtins -- safe
          return !Object('z').propertyIsEnumerable(0);
        }) ? function (it) {
          return classofRaw(it) == 'String' ? split.call(it, '') : Object(it);
        } : Object;
 
        // `RequireObjectCoercible` abstract operation
-       // https://tc39.github.io/ecma262/#sec-requireobjectcoercible
+       // https://tc39.es/ecma262/#sec-requireobjectcoercible
        var requireObjectCoercible = function (it) {
          if (it == undefined) throw TypeError("Can't call method on " + it);
          return it;
        };
 
        // `ToPrimitive` abstract operation
-       // https://tc39.github.io/ecma262/#sec-toprimitive
+       // https://tc39.es/ecma262/#sec-toprimitive
        // instead of the ES6 spec version, we didn't implement @@toPrimitive case
        // and the second argument - flag - preferred type is a string
        var toPrimitive = function (input, PREFERRED_STRING) {
        var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 
        // `Object.getOwnPropertyDescriptor` method
-       // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor
+       // https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
        var f$1 = descriptors ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
          O = toIndexedObject(O);
          P = toPrimitive(P, true);
        var nativeDefineProperty = Object.defineProperty;
 
        // `Object.defineProperty` method
-       // https://tc39.github.io/ecma262/#sec-object.defineproperty
+       // https://tc39.es/ecma262/#sec-object.defineproperty
        var f$2 = descriptors ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
          anObject(O);
          P = toPrimitive(P, true);
        (module.exports = function (key, value) {
          return sharedStore[key] || (sharedStore[key] = value !== undefined ? value : {});
        })('versions', []).push({
-         version: '3.7.0',
+         version: '3.9.1',
          mode:  'global',
-         copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
+         copyright: '© 2021 Denis Pushkarev (zloirock.ru)'
        });
        });
 
        var floor = Math.floor;
 
        // `ToInteger` abstract operation
-       // https://tc39.github.io/ecma262/#sec-tointeger
+       // https://tc39.es/ecma262/#sec-tointeger
        var toInteger = function (argument) {
          return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
        };
        var min = Math.min;
 
        // `ToLength` abstract operation
-       // https://tc39.github.io/ecma262/#sec-tolength
+       // https://tc39.es/ecma262/#sec-tolength
        var toLength = function (argument) {
          return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
        };
            var index = toAbsoluteIndex(fromIndex, length);
            var value;
            // Array#includes uses SameValueZero equality algorithm
-           // eslint-disable-next-line no-self-compare
+           // eslint-disable-next-line no-self-compare -- NaN check
            if (IS_INCLUDES && el != el) while (length > index) {
              value = O[index++];
-             // eslint-disable-next-line no-self-compare
+             // eslint-disable-next-line no-self-compare -- NaN check
              if (value != value) return true;
            // Array#indexOf ignores holes, Array#includes - not
            } else for (;length > index; index++) {
 
        var arrayIncludes = {
          // `Array.prototype.includes` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.includes
+         // https://tc39.es/ecma262/#sec-array.prototype.includes
          includes: createMethod(true),
          // `Array.prototype.indexOf` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.indexof
+         // https://tc39.es/ecma262/#sec-array.prototype.indexof
          indexOf: createMethod(false)
        };
 
        var hiddenKeys$1 = enumBugKeys.concat('length', 'prototype');
 
        // `Object.getOwnPropertyNames` method
-       // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+       // https://tc39.es/ecma262/#sec-object.getownpropertynames
        var f$3 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
          return objectKeysInternal(O, hiddenKeys$1);
        };
        };
 
        // `Date.now` method
-       // https://tc39.github.io/ecma262/#sec-date.now
+       // https://tc39.es/ecma262/#sec-date.now
        _export({ target: 'Date', stat: true }, {
          now: function now() {
            return new Date().getTime();
        var getTime = DatePrototype.getTime;
 
        // `Date.prototype.toString` method
-       // https://tc39.github.io/ecma262/#sec-date.prototype.tostring
+       // https://tc39.es/ecma262/#sec-date.prototype.tostring
        if (new Date(NaN) + '' != INVALID_DATE) {
          redefine(DatePrototype, TO_STRING, function toString() {
            var value = getTime.call(this);
-           // eslint-disable-next-line no-self-compare
+           // eslint-disable-next-line no-self-compare -- NaN check
            return value === value ? nativeDateToString.call(this) : INVALID_DATE;
          });
        }
 
+       function _typeof(obj) {
+         "@babel/helpers - typeof";
+
+         if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+           _typeof = function (obj) {
+             return typeof obj;
+           };
+         } else {
+           _typeof = function (obj) {
+             return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+           };
+         }
+
+         return _typeof(obj);
+       }
+
+       function _classCallCheck(instance, Constructor) {
+         if (!(instance instanceof Constructor)) {
+           throw new TypeError("Cannot call a class as a function");
+         }
+       }
+
+       function _defineProperties(target, props) {
+         for (var i = 0; i < props.length; i++) {
+           var descriptor = props[i];
+           descriptor.enumerable = descriptor.enumerable || false;
+           descriptor.configurable = true;
+           if ("value" in descriptor) descriptor.writable = true;
+           Object.defineProperty(target, descriptor.key, descriptor);
+         }
+       }
+
+       function _createClass(Constructor, protoProps, staticProps) {
+         if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+         if (staticProps) _defineProperties(Constructor, staticProps);
+         return Constructor;
+       }
+
+       function _defineProperty(obj, key, value) {
+         if (key in obj) {
+           Object.defineProperty(obj, key, {
+             value: value,
+             enumerable: true,
+             configurable: true,
+             writable: true
+           });
+         } else {
+           obj[key] = value;
+         }
+
+         return obj;
+       }
+
+       function _slicedToArray(arr, i) {
+         return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
+       }
+
+       function _toConsumableArray(arr) {
+         return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
+       }
+
+       function _arrayWithoutHoles(arr) {
+         if (Array.isArray(arr)) return _arrayLikeToArray(arr);
+       }
+
+       function _arrayWithHoles(arr) {
+         if (Array.isArray(arr)) return arr;
+       }
+
+       function _iterableToArray(iter) {
+         if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
+       }
+
+       function _iterableToArrayLimit(arr, i) {
+         if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
+         var _arr = [];
+         var _n = true;
+         var _d = false;
+         var _e = undefined;
+
+         try {
+           for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+             _arr.push(_s.value);
+
+             if (i && _arr.length === i) break;
+           }
+         } catch (err) {
+           _d = true;
+           _e = err;
+         } finally {
+           try {
+             if (!_n && _i["return"] != null) _i["return"]();
+           } finally {
+             if (_d) throw _e;
+           }
+         }
+
+         return _arr;
+       }
+
+       function _unsupportedIterableToArray(o, minLen) {
+         if (!o) return;
+         if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+         var n = Object.prototype.toString.call(o).slice(8, -1);
+         if (n === "Object" && o.constructor) n = o.constructor.name;
+         if (n === "Map" || n === "Set") return Array.from(o);
+         if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+       }
+
+       function _arrayLikeToArray(arr, len) {
+         if (len == null || len > arr.length) len = arr.length;
+
+         for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+
+         return arr2;
+       }
+
+       function _nonIterableSpread() {
+         throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+       }
+
+       function _nonIterableRest() {
+         throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+       }
+
+       function _createForOfIteratorHelper(o, allowArrayLike) {
+         var it;
+
+         if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
+           if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
+             if (it) o = it;
+             var i = 0;
+
+             var F = function () {};
+
+             return {
+               s: F,
+               n: function () {
+                 if (i >= o.length) return {
+                   done: true
+                 };
+                 return {
+                   done: false,
+                   value: o[i++]
+                 };
+               },
+               e: function (e) {
+                 throw e;
+               },
+               f: F
+             };
+           }
+
+           throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+         }
+
+         var normalCompletion = true,
+             didErr = false,
+             err;
+         return {
+           s: function () {
+             it = o[Symbol.iterator]();
+           },
+           n: function () {
+             var step = it.next();
+             normalCompletion = step.done;
+             return step;
+           },
+           e: function (e) {
+             didErr = true;
+             err = e;
+           },
+           f: function () {
+             try {
+               if (!normalCompletion && it.return != null) it.return();
+             } finally {
+               if (didErr) throw err;
+             }
+           }
+         };
+       }
+
+       var engineIsNode = classofRaw(global_1.process) == 'process';
+
+       var engineUserAgent = getBuiltIn('navigator', 'userAgent') || '';
+
+       var process$1 = global_1.process;
+       var versions = process$1 && process$1.versions;
+       var v8 = versions && versions.v8;
+       var match, version;
+
+       if (v8) {
+         match = v8.split('.');
+         version = match[0] + match[1];
+       } else if (engineUserAgent) {
+         match = engineUserAgent.match(/Edge\/(\d+)/);
+         if (!match || match[1] >= 74) {
+           match = engineUserAgent.match(/Chrome\/(\d+)/);
+           if (match) version = match[1];
+         }
+       }
+
+       var engineV8Version = version && +version;
+
        var nativeSymbol = !!Object.getOwnPropertySymbols && !fails(function () {
-         // Chrome 38 Symbol has incorrect toString conversion
-         // eslint-disable-next-line no-undef
-         return !String(Symbol());
+         /* global Symbol -- required for testing */
+         return !Symbol.sham &&
+           // Chrome 38 Symbol has incorrect toString conversion
+           // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
+           (engineIsNode ? engineV8Version === 38 : engineV8Version > 37 && engineV8Version < 41);
        });
 
        var useSymbolAsUid = nativeSymbol
-         // eslint-disable-next-line no-undef
+         /* global Symbol -- safe */
          && !Symbol.sham
-         // eslint-disable-next-line no-undef
          && typeof Symbol.iterator == 'symbol';
 
-       // `IsArray` abstract operation
-       // https://tc39.github.io/ecma262/#sec-isarray
-       var isArray = Array.isArray || function isArray(arg) {
-         return classofRaw(arg) == 'Array';
+       var WellKnownSymbolsStore = shared('wks');
+       var Symbol$1 = global_1.Symbol;
+       var createWellKnownSymbol = useSymbolAsUid ? Symbol$1 : Symbol$1 && Symbol$1.withoutSetter || uid;
+
+       var wellKnownSymbol = function (name) {
+         if (!has(WellKnownSymbolsStore, name) || !(nativeSymbol || typeof WellKnownSymbolsStore[name] == 'string')) {
+           if (nativeSymbol && has(Symbol$1, name)) {
+             WellKnownSymbolsStore[name] = Symbol$1[name];
+           } else {
+             WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);
+           }
+         } return WellKnownSymbolsStore[name];
+       };
+
+       var f$5 = wellKnownSymbol;
+
+       var wellKnownSymbolWrapped = {
+               f: f$5
+       };
+
+       var defineProperty = objectDefineProperty.f;
+
+       var defineWellKnownSymbol = function (NAME) {
+         var Symbol = path.Symbol || (path.Symbol = {});
+         if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {
+           value: wellKnownSymbolWrapped.f(NAME)
+         });
+       };
+
+       // `Symbol.iterator` well-known symbol
+       // https://tc39.es/ecma262/#sec-symbol.iterator
+       defineWellKnownSymbol('iterator');
+
+       var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+       var test = {};
+
+       test[TO_STRING_TAG] = 'z';
+
+       var toStringTagSupport = String(test) === '[object z]';
+
+       var TO_STRING_TAG$1 = wellKnownSymbol('toStringTag');
+       // ES3 wrong here
+       var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';
+
+       // fallback for IE11 Script Access Denied error
+       var tryGet = function (it, key) {
+         try {
+           return it[key];
+         } catch (error) { /* empty */ }
+       };
+
+       // getting tag from ES6+ `Object.prototype.toString`
+       var classof = toStringTagSupport ? classofRaw : function (it) {
+         var O, tag, result;
+         return it === undefined ? 'Undefined' : it === null ? 'Null'
+           // @@toStringTag case
+           : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG$1)) == 'string' ? tag
+           // builtinTag case
+           : CORRECT_ARGUMENTS ? classofRaw(O)
+           // ES3 arguments fallback
+           : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;
+       };
+
+       // `Object.prototype.toString` method implementation
+       // https://tc39.es/ecma262/#sec-object.prototype.tostring
+       var objectToString = toStringTagSupport ? {}.toString : function toString() {
+         return '[object ' + classof(this) + ']';
+       };
+
+       // `Object.prototype.toString` method
+       // https://tc39.es/ecma262/#sec-object.prototype.tostring
+       if (!toStringTagSupport) {
+         redefine(Object.prototype, 'toString', objectToString, { unsafe: true });
+       }
+
+       // `String.prototype.{ codePointAt, at }` methods implementation
+       var createMethod$1 = function (CONVERT_TO_STRING) {
+         return function ($this, pos) {
+           var S = String(requireObjectCoercible($this));
+           var position = toInteger(pos);
+           var size = S.length;
+           var first, second;
+           if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
+           first = S.charCodeAt(position);
+           return first < 0xD800 || first > 0xDBFF || position + 1 === size
+             || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF
+               ? CONVERT_TO_STRING ? S.charAt(position) : first
+               : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
+         };
+       };
+
+       var stringMultibyte = {
+         // `String.prototype.codePointAt` method
+         // https://tc39.es/ecma262/#sec-string.prototype.codepointat
+         codeAt: createMethod$1(false),
+         // `String.prototype.at` method
+         // https://github.com/mathiasbynens/String.prototype.at
+         charAt: createMethod$1(true)
        };
 
        // `ToObject` abstract operation
-       // https://tc39.github.io/ecma262/#sec-toobject
+       // https://tc39.es/ecma262/#sec-toobject
        var toObject = function (argument) {
          return Object(requireObjectCoercible(argument));
        };
 
+       var correctPrototypeGetter = !fails(function () {
+         function F() { /* empty */ }
+         F.prototype.constructor = null;
+         return Object.getPrototypeOf(new F()) !== F.prototype;
+       });
+
+       var IE_PROTO = sharedKey('IE_PROTO');
+       var ObjectPrototype = Object.prototype;
+
+       // `Object.getPrototypeOf` method
+       // https://tc39.es/ecma262/#sec-object.getprototypeof
+       var objectGetPrototypeOf = correctPrototypeGetter ? Object.getPrototypeOf : function (O) {
+         O = toObject(O);
+         if (has(O, IE_PROTO)) return O[IE_PROTO];
+         if (typeof O.constructor == 'function' && O instanceof O.constructor) {
+           return O.constructor.prototype;
+         } return O instanceof Object ? ObjectPrototype : null;
+       };
+
+       var ITERATOR = wellKnownSymbol('iterator');
+       var BUGGY_SAFARI_ITERATORS = false;
+
+       var returnThis = function () { return this; };
+
+       // `%IteratorPrototype%` object
+       // https://tc39.es/ecma262/#sec-%iteratorprototype%-object
+       var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
+
+       if ([].keys) {
+         arrayIterator = [].keys();
+         // Safari 8 has buggy iterators w/o `next`
+         if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
+         else {
+           PrototypeOfArrayIteratorPrototype = objectGetPrototypeOf(objectGetPrototypeOf(arrayIterator));
+           if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
+         }
+       }
+
+       var NEW_ITERATOR_PROTOTYPE = IteratorPrototype == undefined || fails(function () {
+         var test = {};
+         // FF44- legacy iterators case
+         return IteratorPrototype[ITERATOR].call(test) !== test;
+       });
+
+       if (NEW_ITERATOR_PROTOTYPE) IteratorPrototype = {};
+
+       // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+       if ( !has(IteratorPrototype, ITERATOR)) {
+         createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);
+       }
+
+       var iteratorsCore = {
+         IteratorPrototype: IteratorPrototype,
+         BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
+       };
+
        // `Object.keys` method
-       // https://tc39.github.io/ecma262/#sec-object.keys
+       // https://tc39.es/ecma262/#sec-object.keys
        var objectKeys = Object.keys || function keys(O) {
          return objectKeysInternal(O, enumBugKeys);
        };
 
        // `Object.defineProperties` method
-       // https://tc39.github.io/ecma262/#sec-object.defineproperties
+       // https://tc39.es/ecma262/#sec-object.defineproperties
        var objectDefineProperties = descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
          anObject(O);
          var keys = objectKeys(Properties);
        var LT = '<';
        var PROTOTYPE = 'prototype';
        var SCRIPT = 'script';
-       var IE_PROTO = sharedKey('IE_PROTO');
+       var IE_PROTO$1 = sharedKey('IE_PROTO');
 
        var EmptyConstructor = function () { /* empty */ };
 
        var activeXDocument;
        var NullProtoObject = function () {
          try {
-           /* global ActiveXObject */
+           /* global ActiveXObject -- old IE */
            activeXDocument = document.domain && new ActiveXObject('htmlfile');
          } catch (error) { /* ignore */ }
          NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();
          return NullProtoObject();
        };
 
-       hiddenKeys[IE_PROTO] = true;
+       hiddenKeys[IE_PROTO$1] = true;
 
        // `Object.create` method
-       // https://tc39.github.io/ecma262/#sec-object.create
+       // https://tc39.es/ecma262/#sec-object.create
        var objectCreate = Object.create || function create(O, Properties) {
          var result;
          if (O !== null) {
            result = new EmptyConstructor();
            EmptyConstructor[PROTOTYPE] = null;
            // add "__proto__" for Object.getPrototypeOf polyfill
-           result[IE_PROTO] = O;
+           result[IE_PROTO$1] = O;
          } else result = NullProtoObject();
          return Properties === undefined ? result : objectDefineProperties(result, Properties);
        };
 
-       var nativeGetOwnPropertyNames = objectGetOwnPropertyNames.f;
+       var defineProperty$1 = objectDefineProperty.f;
 
-       var toString$1 = {}.toString;
 
-       var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
-         ? Object.getOwnPropertyNames(window) : [];
 
-       var getWindowNames = function (it) {
-         try {
-           return nativeGetOwnPropertyNames(it);
-         } catch (error) {
-           return windowNames.slice();
+       var TO_STRING_TAG$2 = wellKnownSymbol('toStringTag');
+
+       var setToStringTag = function (it, TAG, STATIC) {
+         if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG$2)) {
+           defineProperty$1(it, TO_STRING_TAG$2, { configurable: true, value: TAG });
          }
        };
 
-       // fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
-       var f$5 = function getOwnPropertyNames(it) {
-         return windowNames && toString$1.call(it) == '[object Window]'
-           ? getWindowNames(it)
-           : nativeGetOwnPropertyNames(toIndexedObject(it));
+       var iterators = {};
+
+       var IteratorPrototype$1 = iteratorsCore.IteratorPrototype;
+
+
+
+
+
+       var returnThis$1 = function () { return this; };
+
+       var createIteratorConstructor = function (IteratorConstructor, NAME, next) {
+         var TO_STRING_TAG = NAME + ' Iterator';
+         IteratorConstructor.prototype = objectCreate(IteratorPrototype$1, { next: createPropertyDescriptor(1, next) });
+         setToStringTag(IteratorConstructor, TO_STRING_TAG, false);
+         iterators[TO_STRING_TAG] = returnThis$1;
+         return IteratorConstructor;
        };
 
-       var objectGetOwnPropertyNamesExternal = {
-               f: f$5
+       var aPossiblePrototype = function (it) {
+         if (!isObject(it) && it !== null) {
+           throw TypeError("Can't set " + String(it) + ' as a prototype');
+         } return it;
        };
 
-       var WellKnownSymbolsStore = shared('wks');
-       var Symbol$1 = global_1.Symbol;
-       var createWellKnownSymbol = useSymbolAsUid ? Symbol$1 : Symbol$1 && Symbol$1.withoutSetter || uid;
+       /* eslint-disable no-proto -- safe */
 
-       var wellKnownSymbol = function (name) {
-         if (!has(WellKnownSymbolsStore, name)) {
-           if (nativeSymbol && has(Symbol$1, name)) WellKnownSymbolsStore[name] = Symbol$1[name];
-           else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);
-         } return WellKnownSymbolsStore[name];
-       };
 
-       var f$6 = wellKnownSymbol;
 
-       var wellKnownSymbolWrapped = {
-               f: f$6
-       };
+       // `Object.setPrototypeOf` method
+       // https://tc39.es/ecma262/#sec-object.setprototypeof
+       // Works with __proto__ only. Old v8 can't work with null proto objects.
+       var objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
+         var CORRECT_SETTER = false;
+         var test = {};
+         var setter;
+         try {
+           setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
+           setter.call(test, []);
+           CORRECT_SETTER = test instanceof Array;
+         } catch (error) { /* empty */ }
+         return function setPrototypeOf(O, proto) {
+           anObject(O);
+           aPossiblePrototype(proto);
+           if (CORRECT_SETTER) setter.call(O, proto);
+           else O.__proto__ = proto;
+           return O;
+         };
+       }() : undefined);
 
-       var defineProperty = objectDefineProperty.f;
+       var IteratorPrototype$2 = iteratorsCore.IteratorPrototype;
+       var BUGGY_SAFARI_ITERATORS$1 = iteratorsCore.BUGGY_SAFARI_ITERATORS;
+       var ITERATOR$1 = wellKnownSymbol('iterator');
+       var KEYS = 'keys';
+       var VALUES = 'values';
+       var ENTRIES = 'entries';
 
-       var defineWellKnownSymbol = function (NAME) {
-         var Symbol = path.Symbol || (path.Symbol = {});
-         if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {
-           value: wellKnownSymbolWrapped.f(NAME)
-         });
-       };
+       var returnThis$2 = function () { return this; };
 
-       var defineProperty$1 = objectDefineProperty.f;
+       var defineIterator = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
+         createIteratorConstructor(IteratorConstructor, NAME, next);
 
+         var getIterationMethod = function (KIND) {
+           if (KIND === DEFAULT && defaultIterator) return defaultIterator;
+           if (!BUGGY_SAFARI_ITERATORS$1 && KIND in IterablePrototype) return IterablePrototype[KIND];
+           switch (KIND) {
+             case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
+             case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
+             case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
+           } return function () { return new IteratorConstructor(this); };
+         };
 
+         var TO_STRING_TAG = NAME + ' Iterator';
+         var INCORRECT_VALUES_NAME = false;
+         var IterablePrototype = Iterable.prototype;
+         var nativeIterator = IterablePrototype[ITERATOR$1]
+           || IterablePrototype['@@iterator']
+           || DEFAULT && IterablePrototype[DEFAULT];
+         var defaultIterator = !BUGGY_SAFARI_ITERATORS$1 && nativeIterator || getIterationMethod(DEFAULT);
+         var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
+         var CurrentIteratorPrototype, methods, KEY;
 
-       var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+         // fix native
+         if (anyNativeIterator) {
+           CurrentIteratorPrototype = objectGetPrototypeOf(anyNativeIterator.call(new Iterable()));
+           if (IteratorPrototype$2 !== Object.prototype && CurrentIteratorPrototype.next) {
+             if ( objectGetPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype$2) {
+               if (objectSetPrototypeOf) {
+                 objectSetPrototypeOf(CurrentIteratorPrototype, IteratorPrototype$2);
+               } else if (typeof CurrentIteratorPrototype[ITERATOR$1] != 'function') {
+                 createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR$1, returnThis$2);
+               }
+             }
+             // Set @@toStringTag to native iterators
+             setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true);
+           }
+         }
 
-       var setToStringTag = function (it, TAG, STATIC) {
-         if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {
-           defineProperty$1(it, TO_STRING_TAG, { configurable: true, value: TAG });
+         // fix Array#{values, @@iterator}.name in V8 / FF
+         if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
+           INCORRECT_VALUES_NAME = true;
+           defaultIterator = function values() { return nativeIterator.call(this); };
          }
-       };
 
-       var aFunction$1 = function (it) {
-         if (typeof it != 'function') {
-           throw TypeError(String(it) + ' is not a function');
-         } return it;
-       };
+         // define iterator
+         if ( IterablePrototype[ITERATOR$1] !== defaultIterator) {
+           createNonEnumerableProperty(IterablePrototype, ITERATOR$1, defaultIterator);
+         }
+         iterators[NAME] = defaultIterator;
 
-       // optional / simple context binding
-       var functionBindContext = function (fn, that, length) {
-         aFunction$1(fn);
-         if (that === undefined) return fn;
-         switch (length) {
-           case 0: return function () {
-             return fn.call(that);
-           };
-           case 1: return function (a) {
-             return fn.call(that, a);
-           };
-           case 2: return function (a, b) {
-             return fn.call(that, a, b);
-           };
-           case 3: return function (a, b, c) {
-             return fn.call(that, a, b, c);
+         // export additional methods
+         if (DEFAULT) {
+           methods = {
+             values: getIterationMethod(VALUES),
+             keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
+             entries: getIterationMethod(ENTRIES)
            };
+           if (FORCED) for (KEY in methods) {
+             if (BUGGY_SAFARI_ITERATORS$1 || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
+               redefine(IterablePrototype, KEY, methods[KEY]);
+             }
+           } else _export({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS$1 || INCORRECT_VALUES_NAME }, methods);
          }
-         return function (/* ...args */) {
-           return fn.apply(that, arguments);
-         };
+
+         return methods;
        };
 
-       var SPECIES = wellKnownSymbol('species');
+       var charAt = stringMultibyte.charAt;
+
+
+
+       var STRING_ITERATOR = 'String Iterator';
+       var setInternalState = internalState.set;
+       var getInternalState = internalState.getterFor(STRING_ITERATOR);
+
+       // `String.prototype[@@iterator]` method
+       // https://tc39.es/ecma262/#sec-string.prototype-@@iterator
+       defineIterator(String, 'String', function (iterated) {
+         setInternalState(this, {
+           type: STRING_ITERATOR,
+           string: String(iterated),
+           index: 0
+         });
+       // `%StringIteratorPrototype%.next` method
+       // https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
+       }, function next() {
+         var state = getInternalState(this);
+         var string = state.string;
+         var index = state.index;
+         var point;
+         if (index >= string.length) return { value: undefined, done: true };
+         point = charAt(string, index);
+         state.index += point.length;
+         return { value: point, done: false };
+       });
+
+       var UNSCOPABLES = wellKnownSymbol('unscopables');
+       var ArrayPrototype = Array.prototype;
+
+       // Array.prototype[@@unscopables]
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+       if (ArrayPrototype[UNSCOPABLES] == undefined) {
+         objectDefineProperty.f(ArrayPrototype, UNSCOPABLES, {
+           configurable: true,
+           value: objectCreate(null)
+         });
+       }
+
+       // add a key to Array.prototype[@@unscopables]
+       var addToUnscopables = function (key) {
+         ArrayPrototype[UNSCOPABLES][key] = true;
+       };
+
+       var ARRAY_ITERATOR = 'Array Iterator';
+       var setInternalState$1 = internalState.set;
+       var getInternalState$1 = internalState.getterFor(ARRAY_ITERATOR);
+
+       // `Array.prototype.entries` method
+       // https://tc39.es/ecma262/#sec-array.prototype.entries
+       // `Array.prototype.keys` method
+       // https://tc39.es/ecma262/#sec-array.prototype.keys
+       // `Array.prototype.values` method
+       // https://tc39.es/ecma262/#sec-array.prototype.values
+       // `Array.prototype[@@iterator]` method
+       // https://tc39.es/ecma262/#sec-array.prototype-@@iterator
+       // `CreateArrayIterator` internal method
+       // https://tc39.es/ecma262/#sec-createarrayiterator
+       var es_array_iterator = defineIterator(Array, 'Array', function (iterated, kind) {
+         setInternalState$1(this, {
+           type: ARRAY_ITERATOR,
+           target: toIndexedObject(iterated), // target
+           index: 0,                          // next index
+           kind: kind                         // kind
+         });
+       // `%ArrayIteratorPrototype%.next` method
+       // https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
+       }, function () {
+         var state = getInternalState$1(this);
+         var target = state.target;
+         var kind = state.kind;
+         var index = state.index++;
+         if (!target || index >= target.length) {
+           state.target = undefined;
+           return { value: undefined, done: true };
+         }
+         if (kind == 'keys') return { value: index, done: false };
+         if (kind == 'values') return { value: target[index], done: false };
+         return { value: [index, target[index]], done: false };
+       }, 'values');
+
+       // argumentsList[@@iterator] is %ArrayProto_values%
+       // https://tc39.es/ecma262/#sec-createunmappedargumentsobject
+       // https://tc39.es/ecma262/#sec-createmappedargumentsobject
+       iterators.Arguments = iterators.Array;
+
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+       addToUnscopables('keys');
+       addToUnscopables('values');
+       addToUnscopables('entries');
+
+       // iterable DOM collections
+       // flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
+       var domIterables = {
+         CSSRuleList: 0,
+         CSSStyleDeclaration: 0,
+         CSSValueList: 0,
+         ClientRectList: 0,
+         DOMRectList: 0,
+         DOMStringList: 0,
+         DOMTokenList: 1,
+         DataTransferItemList: 0,
+         FileList: 0,
+         HTMLAllCollection: 0,
+         HTMLCollection: 0,
+         HTMLFormElement: 0,
+         HTMLSelectElement: 0,
+         MediaList: 0,
+         MimeTypeArray: 0,
+         NamedNodeMap: 0,
+         NodeList: 1,
+         PaintRequestList: 0,
+         Plugin: 0,
+         PluginArray: 0,
+         SVGLengthList: 0,
+         SVGNumberList: 0,
+         SVGPathSegList: 0,
+         SVGPointList: 0,
+         SVGStringList: 0,
+         SVGTransformList: 0,
+         SourceBufferList: 0,
+         StyleSheetList: 0,
+         TextTrackCueList: 0,
+         TextTrackList: 0,
+         TouchList: 0
+       };
+
+       var ITERATOR$2 = wellKnownSymbol('iterator');
+       var TO_STRING_TAG$3 = wellKnownSymbol('toStringTag');
+       var ArrayValues = es_array_iterator.values;
+
+       for (var COLLECTION_NAME in domIterables) {
+         var Collection = global_1[COLLECTION_NAME];
+         var CollectionPrototype = Collection && Collection.prototype;
+         if (CollectionPrototype) {
+           // some Chrome versions have non-configurable methods on DOMTokenList
+           if (CollectionPrototype[ITERATOR$2] !== ArrayValues) try {
+             createNonEnumerableProperty(CollectionPrototype, ITERATOR$2, ArrayValues);
+           } catch (error) {
+             CollectionPrototype[ITERATOR$2] = ArrayValues;
+           }
+           if (!CollectionPrototype[TO_STRING_TAG$3]) {
+             createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG$3, COLLECTION_NAME);
+           }
+           if (domIterables[COLLECTION_NAME]) for (var METHOD_NAME in es_array_iterator) {
+             // some Chrome versions have non-configurable methods on DOMTokenList
+             if (CollectionPrototype[METHOD_NAME] !== es_array_iterator[METHOD_NAME]) try {
+               createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, es_array_iterator[METHOD_NAME]);
+             } catch (error) {
+               CollectionPrototype[METHOD_NAME] = es_array_iterator[METHOD_NAME];
+             }
+           }
+         }
+       }
+
+       // `IsArray` abstract operation
+       // https://tc39.es/ecma262/#sec-isarray
+       var isArray = Array.isArray || function isArray(arg) {
+         return classofRaw(arg) == 'Array';
+       };
+
+       var nativeGetOwnPropertyNames = objectGetOwnPropertyNames.f;
+
+       var toString$1 = {}.toString;
+
+       var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
+         ? Object.getOwnPropertyNames(window) : [];
+
+       var getWindowNames = function (it) {
+         try {
+           return nativeGetOwnPropertyNames(it);
+         } catch (error) {
+           return windowNames.slice();
+         }
+       };
+
+       // fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
+       var f$6 = function getOwnPropertyNames(it) {
+         return windowNames && toString$1.call(it) == '[object Window]'
+           ? getWindowNames(it)
+           : nativeGetOwnPropertyNames(toIndexedObject(it));
+       };
+
+       var objectGetOwnPropertyNamesExternal = {
+               f: f$6
+       };
+
+       var aFunction$1 = function (it) {
+         if (typeof it != 'function') {
+           throw TypeError(String(it) + ' is not a function');
+         } return it;
+       };
+
+       // optional / simple context binding
+       var functionBindContext = function (fn, that, length) {
+         aFunction$1(fn);
+         if (that === undefined) return fn;
+         switch (length) {
+           case 0: return function () {
+             return fn.call(that);
+           };
+           case 1: return function (a) {
+             return fn.call(that, a);
+           };
+           case 2: return function (a, b) {
+             return fn.call(that, a, b);
+           };
+           case 3: return function (a, b, c) {
+             return fn.call(that, a, b, c);
+           };
+         }
+         return function (/* ...args */) {
+           return fn.apply(that, arguments);
+         };
+       };
+
+       var SPECIES = wellKnownSymbol('species');
 
        // `ArraySpeciesCreate` abstract operation
-       // https://tc39.github.io/ecma262/#sec-arrayspeciescreate
+       // https://tc39.es/ecma262/#sec-arrayspeciescreate
        var arraySpeciesCreate = function (originalArray, length) {
          var C;
          if (isArray(originalArray)) {
 
        var push = [].push;
 
-       // `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation
-       var createMethod$1 = function (TYPE) {
+       // `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterOut }` methods implementation
+       var createMethod$2 = function (TYPE) {
          var IS_MAP = TYPE == 1;
          var IS_FILTER = TYPE == 2;
          var IS_SOME = TYPE == 3;
          var IS_EVERY = TYPE == 4;
          var IS_FIND_INDEX = TYPE == 6;
+         var IS_FILTER_OUT = TYPE == 7;
          var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
          return function ($this, callbackfn, that, specificCreate) {
            var O = toObject($this);
            var length = toLength(self.length);
            var index = 0;
            var create = specificCreate || arraySpeciesCreate;
-           var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
+           var target = IS_MAP ? create($this, length) : IS_FILTER || IS_FILTER_OUT ? create($this, 0) : undefined;
            var value, result;
            for (;length > index; index++) if (NO_HOLES || index in self) {
              value = self[index];
                  case 5: return value;             // find
                  case 6: return index;             // findIndex
                  case 2: push.call(target, value); // filter
-               } else if (IS_EVERY) return false;  // every
+               } else switch (TYPE) {
+                 case 4: return false;             // every
+                 case 7: push.call(target, value); // filterOut
+               }
              }
            }
            return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
 
        var arrayIteration = {
          // `Array.prototype.forEach` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
-         forEach: createMethod$1(0),
+         // https://tc39.es/ecma262/#sec-array.prototype.foreach
+         forEach: createMethod$2(0),
          // `Array.prototype.map` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.map
-         map: createMethod$1(1),
+         // https://tc39.es/ecma262/#sec-array.prototype.map
+         map: createMethod$2(1),
          // `Array.prototype.filter` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.filter
-         filter: createMethod$1(2),
+         // https://tc39.es/ecma262/#sec-array.prototype.filter
+         filter: createMethod$2(2),
          // `Array.prototype.some` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.some
-         some: createMethod$1(3),
+         // https://tc39.es/ecma262/#sec-array.prototype.some
+         some: createMethod$2(3),
          // `Array.prototype.every` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.every
-         every: createMethod$1(4),
+         // https://tc39.es/ecma262/#sec-array.prototype.every
+         every: createMethod$2(4),
          // `Array.prototype.find` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.find
-         find: createMethod$1(5),
+         // https://tc39.es/ecma262/#sec-array.prototype.find
+         find: createMethod$2(5),
          // `Array.prototype.findIndex` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex
-         findIndex: createMethod$1(6)
+         // https://tc39.es/ecma262/#sec-array.prototype.findIndex
+         findIndex: createMethod$2(6),
+         // `Array.prototype.filterOut` method
+         // https://github.com/tc39/proposal-array-filtering
+         filterOut: createMethod$2(7)
        };
 
        var $forEach = arrayIteration.forEach;
        var SYMBOL = 'Symbol';
        var PROTOTYPE$1 = 'prototype';
        var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
-       var setInternalState = internalState.set;
-       var getInternalState = internalState.getterFor(SYMBOL);
-       var ObjectPrototype = Object[PROTOTYPE$1];
+       var setInternalState$2 = internalState.set;
+       var getInternalState$2 = internalState.getterFor(SYMBOL);
+       var ObjectPrototype$1 = Object[PROTOTYPE$1];
        var $Symbol = global_1.Symbol;
        var $stringify = getBuiltIn('JSON', 'stringify');
        var nativeGetOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
            get: function () { return nativeDefineProperty$1(this, 'a', { value: 7 }).a; }
          })).a != 7;
        }) ? function (O, P, Attributes) {
-         var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor$1(ObjectPrototype, P);
-         if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
+         var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor$1(ObjectPrototype$1, P);
+         if (ObjectPrototypeDescriptor) delete ObjectPrototype$1[P];
          nativeDefineProperty$1(O, P, Attributes);
-         if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
-           nativeDefineProperty$1(ObjectPrototype, P, ObjectPrototypeDescriptor);
+         if (ObjectPrototypeDescriptor && O !== ObjectPrototype$1) {
+           nativeDefineProperty$1(ObjectPrototype$1, P, ObjectPrototypeDescriptor);
          }
        } : nativeDefineProperty$1;
 
        var wrap = function (tag, description) {
          var symbol = AllSymbols[tag] = objectCreate($Symbol[PROTOTYPE$1]);
-         setInternalState(symbol, {
+         setInternalState$2(symbol, {
            type: SYMBOL,
            tag: tag,
            description: description
        };
 
        var $defineProperty = function defineProperty(O, P, Attributes) {
-         if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
+         if (O === ObjectPrototype$1) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
          anObject(O);
          var key = toPrimitive(P, true);
          anObject(Attributes);
        var $propertyIsEnumerable = function propertyIsEnumerable(V) {
          var P = toPrimitive(V, true);
          var enumerable = nativePropertyIsEnumerable$1.call(this, P);
-         if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;
+         if (this === ObjectPrototype$1 && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;
          return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;
        };
 
        var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
          var it = toIndexedObject(O);
          var key = toPrimitive(P, true);
-         if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;
+         if (it === ObjectPrototype$1 && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;
          var descriptor = nativeGetOwnPropertyDescriptor$1(it, key);
          if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {
            descriptor.enumerable = true;
        };
 
        var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
-         var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
+         var IS_OBJECT_PROTOTYPE = O === ObjectPrototype$1;
          var names = nativeGetOwnPropertyNames$1(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
          var result = [];
          $forEach(names, function (key) {
-           if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {
+           if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype$1, key))) {
              result.push(AllSymbols[key]);
            }
          });
        };
 
        // `Symbol` constructor
-       // https://tc39.github.io/ecma262/#sec-symbol-constructor
+       // https://tc39.es/ecma262/#sec-symbol-constructor
        if (!nativeSymbol) {
          $Symbol = function Symbol() {
            if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
            var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);
            var tag = uid(description);
            var setter = function (value) {
-             if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);
+             if (this === ObjectPrototype$1) setter.call(ObjectPrototypeSymbols, value);
              if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
              setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
            };
-           if (descriptors && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
+           if (descriptors && USE_SETTER) setSymbolDescriptor(ObjectPrototype$1, tag, { configurable: true, set: setter });
            return wrap(tag, description);
          };
 
          redefine($Symbol[PROTOTYPE$1], 'toString', function toString() {
-           return getInternalState(this).tag;
+           return getInternalState$2(this).tag;
          });
 
          redefine($Symbol, 'withoutSetter', function (description) {
            nativeDefineProperty$1($Symbol[PROTOTYPE$1], 'description', {
              configurable: true,
              get: function description() {
-               return getInternalState(this).description;
+               return getInternalState$2(this).description;
              }
            });
            {
-             redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
+             redefine(ObjectPrototype$1, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
            }
          }
        }
 
        _export({ target: SYMBOL, stat: true, forced: !nativeSymbol }, {
          // `Symbol.for` method
-         // https://tc39.github.io/ecma262/#sec-symbol.for
+         // https://tc39.es/ecma262/#sec-symbol.for
          'for': function (key) {
            var string = String(key);
            if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
            return symbol;
          },
          // `Symbol.keyFor` method
-         // https://tc39.github.io/ecma262/#sec-symbol.keyfor
+         // https://tc39.es/ecma262/#sec-symbol.keyfor
          keyFor: function keyFor(sym) {
            if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
            if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
 
        _export({ target: 'Object', stat: true, forced: !nativeSymbol, sham: !descriptors }, {
          // `Object.create` method
-         // https://tc39.github.io/ecma262/#sec-object.create
+         // https://tc39.es/ecma262/#sec-object.create
          create: $create,
          // `Object.defineProperty` method
-         // https://tc39.github.io/ecma262/#sec-object.defineproperty
+         // https://tc39.es/ecma262/#sec-object.defineproperty
          defineProperty: $defineProperty,
          // `Object.defineProperties` method
-         // https://tc39.github.io/ecma262/#sec-object.defineproperties
+         // https://tc39.es/ecma262/#sec-object.defineproperties
          defineProperties: $defineProperties,
          // `Object.getOwnPropertyDescriptor` method
-         // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
+         // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
          getOwnPropertyDescriptor: $getOwnPropertyDescriptor
        });
 
        _export({ target: 'Object', stat: true, forced: !nativeSymbol }, {
          // `Object.getOwnPropertyNames` method
-         // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+         // https://tc39.es/ecma262/#sec-object.getownpropertynames
          getOwnPropertyNames: $getOwnPropertyNames,
          // `Object.getOwnPropertySymbols` method
-         // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols
+         // https://tc39.es/ecma262/#sec-object.getownpropertysymbols
          getOwnPropertySymbols: $getOwnPropertySymbols
        });
 
        });
 
        // `JSON.stringify` method behavior with symbols
-       // https://tc39.github.io/ecma262/#sec-json.stringify
+       // https://tc39.es/ecma262/#sec-json.stringify
        if ($stringify) {
          var FORCED_JSON_STRINGIFY = !nativeSymbol || fails(function () {
            var symbol = $Symbol();
          });
 
          _export({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {
-           // eslint-disable-next-line no-unused-vars
+           // eslint-disable-next-line no-unused-vars -- required for `.length`
            stringify: function stringify(it, replacer, space) {
              var args = [it];
              var index = 1;
        }
 
        // `Symbol.prototype[@@toPrimitive]` method
-       // https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive
+       // https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
        if (!$Symbol[PROTOTYPE$1][TO_PRIMITIVE]) {
          createNonEnumerableProperty($Symbol[PROTOTYPE$1], TO_PRIMITIVE, $Symbol[PROTOTYPE$1].valueOf);
        }
        // `Symbol.prototype[@@toStringTag]` property
-       // https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag
+       // https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
        setToStringTag($Symbol, SYMBOL);
 
        hiddenKeys[HIDDEN] = true;
          });
        }
 
-       // `Symbol.iterator` well-known symbol
-       // https://tc39.github.io/ecma262/#sec-symbol.iterator
-       defineWellKnownSymbol('iterator');
+       var arrayBufferNative = typeof ArrayBuffer !== 'undefined' && typeof DataView !== 'undefined';
 
-       var arrayMethodIsStrict = function (METHOD_NAME, argument) {
-         var method = [][METHOD_NAME];
-         return !!method && fails(function () {
-           // eslint-disable-next-line no-useless-call,no-throw-literal
-           method.call(null, argument || function () { throw 1; }, 1);
-         });
+       var redefineAll = function (target, src, options) {
+         for (var key in src) redefine(target, key, src[key], options);
+         return target;
        };
 
-       var defineProperty$3 = Object.defineProperty;
-       var cache = {};
-
-       var thrower = function (it) { throw it; };
-
-       var arrayMethodUsesToLength = function (METHOD_NAME, options) {
-         if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];
-         if (!options) options = {};
-         var method = [][METHOD_NAME];
-         var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;
-         var argument0 = has(options, 0) ? options[0] : thrower;
-         var argument1 = has(options, 1) ? options[1] : undefined;
-
-         return cache[METHOD_NAME] = !!method && !fails(function () {
-           if (ACCESSORS && !descriptors) return true;
-           var O = { length: -1 };
-
-           if (ACCESSORS) defineProperty$3(O, 1, { enumerable: true, get: thrower });
-           else O[1] = 1;
-
-           method.call(O, argument0, argument1);
-         });
+       var anInstance = function (it, Constructor, name) {
+         if (!(it instanceof Constructor)) {
+           throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
+         } return it;
        };
 
-       var $forEach$1 = arrayIteration.forEach;
-
-
-
-       var STRICT_METHOD = arrayMethodIsStrict('forEach');
-       var USES_TO_LENGTH = arrayMethodUsesToLength('forEach');
-
-       // `Array.prototype.forEach` method implementation
-       // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
-       var arrayForEach = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {
-         return $forEach$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-       } : [].forEach;
-
-       // `Array.prototype.forEach` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
-       _export({ target: 'Array', proto: true, forced: [].forEach != arrayForEach }, {
-         forEach: arrayForEach
-       });
-
-       var $indexOf = arrayIncludes.indexOf;
-
-
-
-       var nativeIndexOf = [].indexOf;
+       // `ToIndex` abstract operation
+       // https://tc39.es/ecma262/#sec-toindex
+       var toIndex = function (it) {
+         if (it === undefined) return 0;
+         var number = toInteger(it);
+         var length = toLength(number);
+         if (number !== length) throw RangeError('Wrong length or index');
+         return length;
+       };
 
-       var NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;
-       var STRICT_METHOD$1 = arrayMethodIsStrict('indexOf');
-       var USES_TO_LENGTH$1 = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
+       // IEEE754 conversions based on https://github.com/feross/ieee754
+       var abs = Math.abs;
+       var pow = Math.pow;
+       var floor$1 = Math.floor;
+       var log = Math.log;
+       var LN2 = Math.LN2;
 
-       // `Array.prototype.indexOf` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.indexof
-       _export({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD$1 || !USES_TO_LENGTH$1 }, {
-         indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
-           return NEGATIVE_ZERO
-             // convert -0 to +0
-             ? nativeIndexOf.apply(this, arguments) || 0
-             : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);
+       var pack = function (number, mantissaLength, bytes) {
+         var buffer = new Array(bytes);
+         var exponentLength = bytes * 8 - mantissaLength - 1;
+         var eMax = (1 << exponentLength) - 1;
+         var eBias = eMax >> 1;
+         var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;
+         var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
+         var index = 0;
+         var exponent, mantissa, c;
+         number = abs(number);
+         // eslint-disable-next-line no-self-compare -- NaN check
+         if (number != number || number === Infinity) {
+           // eslint-disable-next-line no-self-compare -- NaN check
+           mantissa = number != number ? 1 : 0;
+           exponent = eMax;
+         } else {
+           exponent = floor$1(log(number) / LN2);
+           if (number * (c = pow(2, -exponent)) < 1) {
+             exponent--;
+             c *= 2;
+           }
+           if (exponent + eBias >= 1) {
+             number += rt / c;
+           } else {
+             number += rt * pow(2, 1 - eBias);
+           }
+           if (number * c >= 2) {
+             exponent++;
+             c /= 2;
+           }
+           if (exponent + eBias >= eMax) {
+             mantissa = 0;
+             exponent = eMax;
+           } else if (exponent + eBias >= 1) {
+             mantissa = (number * c - 1) * pow(2, mantissaLength);
+             exponent = exponent + eBias;
+           } else {
+             mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);
+             exponent = 0;
+           }
          }
-       });
-
-       // `Array.isArray` method
-       // https://tc39.github.io/ecma262/#sec-array.isarray
-       _export({ target: 'Array', stat: true }, {
-         isArray: isArray
-       });
-
-       var UNSCOPABLES = wellKnownSymbol('unscopables');
-       var ArrayPrototype = Array.prototype;
-
-       // Array.prototype[@@unscopables]
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
-       if (ArrayPrototype[UNSCOPABLES] == undefined) {
-         objectDefineProperty.f(ArrayPrototype, UNSCOPABLES, {
-           configurable: true,
-           value: objectCreate(null)
-         });
-       }
-
-       // add a key to Array.prototype[@@unscopables]
-       var addToUnscopables = function (key) {
-         ArrayPrototype[UNSCOPABLES][key] = true;
+         for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);
+         exponent = exponent << mantissaLength | mantissa;
+         exponentLength += mantissaLength;
+         for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);
+         buffer[--index] |= sign * 128;
+         return buffer;
        };
 
-       var iterators = {};
-
-       var correctPrototypeGetter = !fails(function () {
-         function F() { /* empty */ }
-         F.prototype.constructor = null;
-         return Object.getPrototypeOf(new F()) !== F.prototype;
-       });
+       var unpack = function (buffer, mantissaLength) {
+         var bytes = buffer.length;
+         var exponentLength = bytes * 8 - mantissaLength - 1;
+         var eMax = (1 << exponentLength) - 1;
+         var eBias = eMax >> 1;
+         var nBits = exponentLength - 7;
+         var index = bytes - 1;
+         var sign = buffer[index--];
+         var exponent = sign & 127;
+         var mantissa;
+         sign >>= 7;
+         for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);
+         mantissa = exponent & (1 << -nBits) - 1;
+         exponent >>= -nBits;
+         nBits += mantissaLength;
+         for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);
+         if (exponent === 0) {
+           exponent = 1 - eBias;
+         } else if (exponent === eMax) {
+           return mantissa ? NaN : sign ? -Infinity : Infinity;
+         } else {
+           mantissa = mantissa + pow(2, mantissaLength);
+           exponent = exponent - eBias;
+         } return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);
+       };
 
-       var IE_PROTO$1 = sharedKey('IE_PROTO');
-       var ObjectPrototype$1 = Object.prototype;
+       var ieee754 = {
+         pack: pack,
+         unpack: unpack
+       };
 
-       // `Object.getPrototypeOf` method
-       // https://tc39.github.io/ecma262/#sec-object.getprototypeof
-       var objectGetPrototypeOf = correctPrototypeGetter ? Object.getPrototypeOf : function (O) {
-         O = toObject(O);
-         if (has(O, IE_PROTO$1)) return O[IE_PROTO$1];
-         if (typeof O.constructor == 'function' && O instanceof O.constructor) {
-           return O.constructor.prototype;
-         } return O instanceof Object ? ObjectPrototype$1 : null;
+       // `Array.prototype.fill` method implementation
+       // https://tc39.es/ecma262/#sec-array.prototype.fill
+       var arrayFill = function fill(value /* , start = 0, end = @length */) {
+         var O = toObject(this);
+         var length = toLength(O.length);
+         var argumentsLength = arguments.length;
+         var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
+         var end = argumentsLength > 2 ? arguments[2] : undefined;
+         var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
+         while (endPos > index) O[index++] = value;
+         return O;
        };
 
-       var ITERATOR = wellKnownSymbol('iterator');
-       var BUGGY_SAFARI_ITERATORS = false;
+       var getOwnPropertyNames = objectGetOwnPropertyNames.f;
+       var defineProperty$3 = objectDefineProperty.f;
 
-       var returnThis = function () { return this; };
 
-       // `%IteratorPrototype%` object
-       // https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object
-       var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
 
-       if ([].keys) {
-         arrayIterator = [].keys();
-         // Safari 8 has buggy iterators w/o `next`
-         if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
-         else {
-           PrototypeOfArrayIteratorPrototype = objectGetPrototypeOf(objectGetPrototypeOf(arrayIterator));
-           if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
-         }
-       }
 
-       if (IteratorPrototype == undefined) IteratorPrototype = {};
+       var getInternalState$3 = internalState.get;
+       var setInternalState$3 = internalState.set;
+       var ARRAY_BUFFER = 'ArrayBuffer';
+       var DATA_VIEW = 'DataView';
+       var PROTOTYPE$2 = 'prototype';
+       var WRONG_LENGTH = 'Wrong length';
+       var WRONG_INDEX = 'Wrong index';
+       var NativeArrayBuffer = global_1[ARRAY_BUFFER];
+       var $ArrayBuffer = NativeArrayBuffer;
+       var $DataView = global_1[DATA_VIEW];
+       var $DataViewPrototype = $DataView && $DataView[PROTOTYPE$2];
+       var ObjectPrototype$2 = Object.prototype;
+       var RangeError$1 = global_1.RangeError;
 
-       // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
-       if ( !has(IteratorPrototype, ITERATOR)) {
-         createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);
-       }
+       var packIEEE754 = ieee754.pack;
+       var unpackIEEE754 = ieee754.unpack;
 
-       var iteratorsCore = {
-         IteratorPrototype: IteratorPrototype,
-         BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
+       var packInt8 = function (number) {
+         return [number & 0xFF];
        };
 
-       var IteratorPrototype$1 = iteratorsCore.IteratorPrototype;
+       var packInt16 = function (number) {
+         return [number & 0xFF, number >> 8 & 0xFF];
+       };
 
+       var packInt32 = function (number) {
+         return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
+       };
 
+       var unpackInt32 = function (buffer) {
+         return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
+       };
 
+       var packFloat32 = function (number) {
+         return packIEEE754(number, 23, 4);
+       };
 
+       var packFloat64 = function (number) {
+         return packIEEE754(number, 52, 8);
+       };
 
-       var returnThis$1 = function () { return this; };
+       var addGetter = function (Constructor, key) {
+         defineProperty$3(Constructor[PROTOTYPE$2], key, { get: function () { return getInternalState$3(this)[key]; } });
+       };
 
-       var createIteratorConstructor = function (IteratorConstructor, NAME, next) {
-         var TO_STRING_TAG = NAME + ' Iterator';
-         IteratorConstructor.prototype = objectCreate(IteratorPrototype$1, { next: createPropertyDescriptor(1, next) });
-         setToStringTag(IteratorConstructor, TO_STRING_TAG, false);
-         iterators[TO_STRING_TAG] = returnThis$1;
-         return IteratorConstructor;
+       var get$1 = function (view, count, index, isLittleEndian) {
+         var intIndex = toIndex(index);
+         var store = getInternalState$3(view);
+         if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
+         var bytes = getInternalState$3(store.buffer).bytes;
+         var start = intIndex + store.byteOffset;
+         var pack = bytes.slice(start, start + count);
+         return isLittleEndian ? pack : pack.reverse();
        };
 
-       var aPossiblePrototype = function (it) {
-         if (!isObject(it) && it !== null) {
-           throw TypeError("Can't set " + String(it) + ' as a prototype');
-         } return it;
+       var set$1 = function (view, count, index, conversion, value, isLittleEndian) {
+         var intIndex = toIndex(index);
+         var store = getInternalState$3(view);
+         if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
+         var bytes = getInternalState$3(store.buffer).bytes;
+         var start = intIndex + store.byteOffset;
+         var pack = conversion(+value);
+         for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
        };
 
-       // `Object.setPrototypeOf` method
-       // https://tc39.github.io/ecma262/#sec-object.setprototypeof
-       // Works with __proto__ only. Old v8 can't work with null proto objects.
-       /* eslint-disable no-proto */
-       var objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
-         var CORRECT_SETTER = false;
-         var test = {};
-         var setter;
-         try {
-           setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
-           setter.call(test, []);
-           CORRECT_SETTER = test instanceof Array;
-         } catch (error) { /* empty */ }
-         return function setPrototypeOf(O, proto) {
-           anObject(O);
-           aPossiblePrototype(proto);
-           if (CORRECT_SETTER) setter.call(O, proto);
-           else O.__proto__ = proto;
-           return O;
+       if (!arrayBufferNative) {
+         $ArrayBuffer = function ArrayBuffer(length) {
+           anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
+           var byteLength = toIndex(length);
+           setInternalState$3(this, {
+             bytes: arrayFill.call(new Array(byteLength), 0),
+             byteLength: byteLength
+           });
+           if (!descriptors) this.byteLength = byteLength;
          };
-       }() : undefined);
-
-       var IteratorPrototype$2 = iteratorsCore.IteratorPrototype;
-       var BUGGY_SAFARI_ITERATORS$1 = iteratorsCore.BUGGY_SAFARI_ITERATORS;
-       var ITERATOR$1 = wellKnownSymbol('iterator');
-       var KEYS = 'keys';
-       var VALUES = 'values';
-       var ENTRIES = 'entries';
 
-       var returnThis$2 = function () { return this; };
+         $DataView = function DataView(buffer, byteOffset, byteLength) {
+           anInstance(this, $DataView, DATA_VIEW);
+           anInstance(buffer, $ArrayBuffer, DATA_VIEW);
+           var bufferLength = getInternalState$3(buffer).byteLength;
+           var offset = toInteger(byteOffset);
+           if (offset < 0 || offset > bufferLength) throw RangeError$1('Wrong offset');
+           byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
+           if (offset + byteLength > bufferLength) throw RangeError$1(WRONG_LENGTH);
+           setInternalState$3(this, {
+             buffer: buffer,
+             byteLength: byteLength,
+             byteOffset: offset
+           });
+           if (!descriptors) {
+             this.buffer = buffer;
+             this.byteLength = byteLength;
+             this.byteOffset = offset;
+           }
+         };
 
-       var defineIterator = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
-         createIteratorConstructor(IteratorConstructor, NAME, next);
-
-         var getIterationMethod = function (KIND) {
-           if (KIND === DEFAULT && defaultIterator) return defaultIterator;
-           if (!BUGGY_SAFARI_ITERATORS$1 && KIND in IterablePrototype) return IterablePrototype[KIND];
-           switch (KIND) {
-             case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
-             case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
-             case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
-           } return function () { return new IteratorConstructor(this); };
-         };
-
-         var TO_STRING_TAG = NAME + ' Iterator';
-         var INCORRECT_VALUES_NAME = false;
-         var IterablePrototype = Iterable.prototype;
-         var nativeIterator = IterablePrototype[ITERATOR$1]
-           || IterablePrototype['@@iterator']
-           || DEFAULT && IterablePrototype[DEFAULT];
-         var defaultIterator = !BUGGY_SAFARI_ITERATORS$1 && nativeIterator || getIterationMethod(DEFAULT);
-         var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
-         var CurrentIteratorPrototype, methods, KEY;
-
-         // fix native
-         if (anyNativeIterator) {
-           CurrentIteratorPrototype = objectGetPrototypeOf(anyNativeIterator.call(new Iterable()));
-           if (IteratorPrototype$2 !== Object.prototype && CurrentIteratorPrototype.next) {
-             if ( objectGetPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype$2) {
-               if (objectSetPrototypeOf) {
-                 objectSetPrototypeOf(CurrentIteratorPrototype, IteratorPrototype$2);
-               } else if (typeof CurrentIteratorPrototype[ITERATOR$1] != 'function') {
-                 createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR$1, returnThis$2);
-               }
-             }
-             // Set @@toStringTag to native iterators
-             setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true);
-           }
-         }
-
-         // fix Array#{values, @@iterator}.name in V8 / FF
-         if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
-           INCORRECT_VALUES_NAME = true;
-           defaultIterator = function values() { return nativeIterator.call(this); };
-         }
-
-         // define iterator
-         if ( IterablePrototype[ITERATOR$1] !== defaultIterator) {
-           createNonEnumerableProperty(IterablePrototype, ITERATOR$1, defaultIterator);
-         }
-         iterators[NAME] = defaultIterator;
-
-         // export additional methods
-         if (DEFAULT) {
-           methods = {
-             values: getIterationMethod(VALUES),
-             keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
-             entries: getIterationMethod(ENTRIES)
-           };
-           if (FORCED) for (KEY in methods) {
-             if (BUGGY_SAFARI_ITERATORS$1 || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
-               redefine(IterablePrototype, KEY, methods[KEY]);
-             }
-           } else _export({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS$1 || INCORRECT_VALUES_NAME }, methods);
-         }
-
-         return methods;
-       };
-
-       var ARRAY_ITERATOR = 'Array Iterator';
-       var setInternalState$1 = internalState.set;
-       var getInternalState$1 = internalState.getterFor(ARRAY_ITERATOR);
-
-       // `Array.prototype.entries` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.entries
-       // `Array.prototype.keys` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.keys
-       // `Array.prototype.values` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.values
-       // `Array.prototype[@@iterator]` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator
-       // `CreateArrayIterator` internal method
-       // https://tc39.github.io/ecma262/#sec-createarrayiterator
-       var es_array_iterator = defineIterator(Array, 'Array', function (iterated, kind) {
-         setInternalState$1(this, {
-           type: ARRAY_ITERATOR,
-           target: toIndexedObject(iterated), // target
-           index: 0,                          // next index
-           kind: kind                         // kind
-         });
-       // `%ArrayIteratorPrototype%.next` method
-       // https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next
-       }, function () {
-         var state = getInternalState$1(this);
-         var target = state.target;
-         var kind = state.kind;
-         var index = state.index++;
-         if (!target || index >= target.length) {
-           state.target = undefined;
-           return { value: undefined, done: true };
-         }
-         if (kind == 'keys') return { value: index, done: false };
-         if (kind == 'values') return { value: target[index], done: false };
-         return { value: [index, target[index]], done: false };
-       }, 'values');
-
-       // argumentsList[@@iterator] is %ArrayProto_values%
-       // https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject
-       // https://tc39.github.io/ecma262/#sec-createmappedargumentsobject
-       iterators.Arguments = iterators.Array;
-
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
-       addToUnscopables('keys');
-       addToUnscopables('values');
-       addToUnscopables('entries');
-
-       var nativeJoin = [].join;
-
-       var ES3_STRINGS = indexedObject != Object;
-       var STRICT_METHOD$2 = arrayMethodIsStrict('join', ',');
-
-       // `Array.prototype.join` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.join
-       _export({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD$2 }, {
-         join: function join(separator) {
-           return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);
-         }
-       });
-
-       var engineUserAgent = getBuiltIn('navigator', 'userAgent') || '';
-
-       var process$1 = global_1.process;
-       var versions = process$1 && process$1.versions;
-       var v8 = versions && versions.v8;
-       var match, version;
-
-       if (v8) {
-         match = v8.split('.');
-         version = match[0] + match[1];
-       } else if (engineUserAgent) {
-         match = engineUserAgent.match(/Edge\/(\d+)/);
-         if (!match || match[1] >= 74) {
-           match = engineUserAgent.match(/Chrome\/(\d+)/);
-           if (match) version = match[1];
-         }
-       }
-
-       var engineV8Version = version && +version;
-
-       var SPECIES$1 = wellKnownSymbol('species');
-
-       var arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
-         // We can't use this feature detection in V8 since it causes
-         // deoptimization and serious performance degradation
-         // https://github.com/zloirock/core-js/issues/677
-         return engineV8Version >= 51 || !fails(function () {
-           var array = [];
-           var constructor = array.constructor = {};
-           constructor[SPECIES$1] = function () {
-             return { foo: 1 };
-           };
-           return array[METHOD_NAME](Boolean).foo !== 1;
-         });
-       };
-
-       var $map = arrayIteration.map;
-
-
-
-       var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
-       // FF49- issue
-       var USES_TO_LENGTH$2 = arrayMethodUsesToLength('map');
-
-       // `Array.prototype.map` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.map
-       // with adding support of @@species
-       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH$2 }, {
-         map: function map(callbackfn /* , thisArg */) {
-           return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-         }
-       });
-
-       var createProperty = function (object, key, value) {
-         var propertyKey = toPrimitive(key);
-         if (propertyKey in object) objectDefineProperty.f(object, propertyKey, createPropertyDescriptor(0, value));
-         else object[propertyKey] = value;
-       };
-
-       var HAS_SPECIES_SUPPORT$1 = arrayMethodHasSpeciesSupport('slice');
-       var USES_TO_LENGTH$3 = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });
-
-       var SPECIES$2 = wellKnownSymbol('species');
-       var nativeSlice = [].slice;
-       var max$1 = Math.max;
-
-       // `Array.prototype.slice` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.slice
-       // fallback for not array-like ES3 strings and DOM objects
-       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$1 || !USES_TO_LENGTH$3 }, {
-         slice: function slice(start, end) {
-           var O = toIndexedObject(this);
-           var length = toLength(O.length);
-           var k = toAbsoluteIndex(start, length);
-           var fin = toAbsoluteIndex(end === undefined ? length : end, length);
-           // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
-           var Constructor, result, n;
-           if (isArray(O)) {
-             Constructor = O.constructor;
-             // cross-realm fallback
-             if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {
-               Constructor = undefined;
-             } else if (isObject(Constructor)) {
-               Constructor = Constructor[SPECIES$2];
-               if (Constructor === null) Constructor = undefined;
-             }
-             if (Constructor === Array || Constructor === undefined) {
-               return nativeSlice.call(O, k, fin);
-             }
-           }
-           result = new (Constructor === undefined ? Array : Constructor)(max$1(fin - k, 0));
-           for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
-           result.length = n;
-           return result;
-         }
-       });
-
-       var arrayBufferNative = typeof ArrayBuffer !== 'undefined' && typeof DataView !== 'undefined';
-
-       var redefineAll = function (target, src, options) {
-         for (var key in src) redefine(target, key, src[key], options);
-         return target;
-       };
-
-       var anInstance = function (it, Constructor, name) {
-         if (!(it instanceof Constructor)) {
-           throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
-         } return it;
-       };
-
-       // `ToIndex` abstract operation
-       // https://tc39.github.io/ecma262/#sec-toindex
-       var toIndex = function (it) {
-         if (it === undefined) return 0;
-         var number = toInteger(it);
-         var length = toLength(number);
-         if (number !== length) throw RangeError('Wrong length or index');
-         return length;
-       };
-
-       // IEEE754 conversions based on https://github.com/feross/ieee754
-       // eslint-disable-next-line no-shadow-restricted-names
-       var Infinity$1 = 1 / 0;
-       var abs = Math.abs;
-       var pow = Math.pow;
-       var floor$1 = Math.floor;
-       var log = Math.log;
-       var LN2 = Math.LN2;
-
-       var pack = function (number, mantissaLength, bytes) {
-         var buffer = new Array(bytes);
-         var exponentLength = bytes * 8 - mantissaLength - 1;
-         var eMax = (1 << exponentLength) - 1;
-         var eBias = eMax >> 1;
-         var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;
-         var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
-         var index = 0;
-         var exponent, mantissa, c;
-         number = abs(number);
-         // eslint-disable-next-line no-self-compare
-         if (number != number || number === Infinity$1) {
-           // eslint-disable-next-line no-self-compare
-           mantissa = number != number ? 1 : 0;
-           exponent = eMax;
-         } else {
-           exponent = floor$1(log(number) / LN2);
-           if (number * (c = pow(2, -exponent)) < 1) {
-             exponent--;
-             c *= 2;
-           }
-           if (exponent + eBias >= 1) {
-             number += rt / c;
-           } else {
-             number += rt * pow(2, 1 - eBias);
-           }
-           if (number * c >= 2) {
-             exponent++;
-             c /= 2;
-           }
-           if (exponent + eBias >= eMax) {
-             mantissa = 0;
-             exponent = eMax;
-           } else if (exponent + eBias >= 1) {
-             mantissa = (number * c - 1) * pow(2, mantissaLength);
-             exponent = exponent + eBias;
-           } else {
-             mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);
-             exponent = 0;
-           }
-         }
-         for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);
-         exponent = exponent << mantissaLength | mantissa;
-         exponentLength += mantissaLength;
-         for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);
-         buffer[--index] |= sign * 128;
-         return buffer;
-       };
-
-       var unpack = function (buffer, mantissaLength) {
-         var bytes = buffer.length;
-         var exponentLength = bytes * 8 - mantissaLength - 1;
-         var eMax = (1 << exponentLength) - 1;
-         var eBias = eMax >> 1;
-         var nBits = exponentLength - 7;
-         var index = bytes - 1;
-         var sign = buffer[index--];
-         var exponent = sign & 127;
-         var mantissa;
-         sign >>= 7;
-         for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);
-         mantissa = exponent & (1 << -nBits) - 1;
-         exponent >>= -nBits;
-         nBits += mantissaLength;
-         for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);
-         if (exponent === 0) {
-           exponent = 1 - eBias;
-         } else if (exponent === eMax) {
-           return mantissa ? NaN : sign ? -Infinity$1 : Infinity$1;
-         } else {
-           mantissa = mantissa + pow(2, mantissaLength);
-           exponent = exponent - eBias;
-         } return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);
-       };
-
-       var ieee754 = {
-         pack: pack,
-         unpack: unpack
-       };
-
-       // `Array.prototype.fill` method implementation
-       // https://tc39.github.io/ecma262/#sec-array.prototype.fill
-       var arrayFill = function fill(value /* , start = 0, end = @length */) {
-         var O = toObject(this);
-         var length = toLength(O.length);
-         var argumentsLength = arguments.length;
-         var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
-         var end = argumentsLength > 2 ? arguments[2] : undefined;
-         var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
-         while (endPos > index) O[index++] = value;
-         return O;
-       };
-
-       var getOwnPropertyNames = objectGetOwnPropertyNames.f;
-       var defineProperty$4 = objectDefineProperty.f;
-
-
-
-
-       var getInternalState$2 = internalState.get;
-       var setInternalState$2 = internalState.set;
-       var ARRAY_BUFFER = 'ArrayBuffer';
-       var DATA_VIEW = 'DataView';
-       var PROTOTYPE$2 = 'prototype';
-       var WRONG_LENGTH = 'Wrong length';
-       var WRONG_INDEX = 'Wrong index';
-       var NativeArrayBuffer = global_1[ARRAY_BUFFER];
-       var $ArrayBuffer = NativeArrayBuffer;
-       var $DataView = global_1[DATA_VIEW];
-       var $DataViewPrototype = $DataView && $DataView[PROTOTYPE$2];
-       var ObjectPrototype$2 = Object.prototype;
-       var RangeError$1 = global_1.RangeError;
-
-       var packIEEE754 = ieee754.pack;
-       var unpackIEEE754 = ieee754.unpack;
-
-       var packInt8 = function (number) {
-         return [number & 0xFF];
-       };
-
-       var packInt16 = function (number) {
-         return [number & 0xFF, number >> 8 & 0xFF];
-       };
-
-       var packInt32 = function (number) {
-         return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
-       };
-
-       var unpackInt32 = function (buffer) {
-         return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
-       };
-
-       var packFloat32 = function (number) {
-         return packIEEE754(number, 23, 4);
-       };
-
-       var packFloat64 = function (number) {
-         return packIEEE754(number, 52, 8);
-       };
-
-       var addGetter = function (Constructor, key) {
-         defineProperty$4(Constructor[PROTOTYPE$2], key, { get: function () { return getInternalState$2(this)[key]; } });
-       };
-
-       var get$1 = function (view, count, index, isLittleEndian) {
-         var intIndex = toIndex(index);
-         var store = getInternalState$2(view);
-         if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
-         var bytes = getInternalState$2(store.buffer).bytes;
-         var start = intIndex + store.byteOffset;
-         var pack = bytes.slice(start, start + count);
-         return isLittleEndian ? pack : pack.reverse();
-       };
-
-       var set$1 = function (view, count, index, conversion, value, isLittleEndian) {
-         var intIndex = toIndex(index);
-         var store = getInternalState$2(view);
-         if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
-         var bytes = getInternalState$2(store.buffer).bytes;
-         var start = intIndex + store.byteOffset;
-         var pack = conversion(+value);
-         for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
-       };
-
-       if (!arrayBufferNative) {
-         $ArrayBuffer = function ArrayBuffer(length) {
-           anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
-           var byteLength = toIndex(length);
-           setInternalState$2(this, {
-             bytes: arrayFill.call(new Array(byteLength), 0),
-             byteLength: byteLength
-           });
-           if (!descriptors) this.byteLength = byteLength;
-         };
-
-         $DataView = function DataView(buffer, byteOffset, byteLength) {
-           anInstance(this, $DataView, DATA_VIEW);
-           anInstance(buffer, $ArrayBuffer, DATA_VIEW);
-           var bufferLength = getInternalState$2(buffer).byteLength;
-           var offset = toInteger(byteOffset);
-           if (offset < 0 || offset > bufferLength) throw RangeError$1('Wrong offset');
-           byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
-           if (offset + byteLength > bufferLength) throw RangeError$1(WRONG_LENGTH);
-           setInternalState$2(this, {
-             buffer: buffer,
-             byteLength: byteLength,
-             byteOffset: offset
-           });
-           if (!descriptors) {
-             this.buffer = buffer;
-             this.byteLength = byteLength;
-             this.byteOffset = offset;
-           }
-         };
-
-         if (descriptors) {
-           addGetter($ArrayBuffer, 'byteLength');
-           addGetter($DataView, 'buffer');
-           addGetter($DataView, 'byteLength');
-           addGetter($DataView, 'byteOffset');
-         }
+         if (descriptors) {
+           addGetter($ArrayBuffer, 'byteLength');
+           addGetter($DataView, 'buffer');
+           addGetter($DataView, 'byteLength');
+           addGetter($DataView, 'byteOffset');
+         }
 
          redefineAll($DataView[PROTOTYPE$2], {
            getInt8: function getInt8(byteOffset) {
            }
          });
        } else {
+         /* eslint-disable no-new -- required for testing */
          if (!fails(function () {
            NativeArrayBuffer(1);
          }) || !fails(function () {
-           new NativeArrayBuffer(-1); // eslint-disable-line no-new
+           new NativeArrayBuffer(-1);
          }) || fails(function () {
-           new NativeArrayBuffer(); // eslint-disable-line no-new
-           new NativeArrayBuffer(1.5); // eslint-disable-line no-new
-           new NativeArrayBuffer(NaN); // eslint-disable-line no-new
+           new NativeArrayBuffer();
+           new NativeArrayBuffer(1.5);
+           new NativeArrayBuffer(NaN);
            return NativeArrayBuffer.name != ARRAY_BUFFER;
          })) {
+         /* eslint-enable no-new -- required for testing */
            $ArrayBuffer = function ArrayBuffer(length) {
              anInstance(this, $ArrayBuffer);
              return new NativeArrayBuffer(toIndex(length));
          DataView: $DataView
        };
 
-       var SPECIES$3 = wellKnownSymbol('species');
+       // `DataView` constructor
+       // https://tc39.es/ecma262/#sec-dataview-constructor
+       _export({ global: true, forced: !arrayBufferNative }, {
+         DataView: arrayBuffer.DataView
+       });
 
-       var setSpecies = function (CONSTRUCTOR_NAME) {
-         var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
-         var defineProperty = objectDefineProperty.f;
+       var SPECIES$1 = wellKnownSymbol('species');
 
-         if (descriptors && Constructor && !Constructor[SPECIES$3]) {
-           defineProperty(Constructor, SPECIES$3, {
-             configurable: true,
-             get: function () { return this; }
-           });
-         }
+       // `SpeciesConstructor` abstract operation
+       // https://tc39.es/ecma262/#sec-speciesconstructor
+       var speciesConstructor = function (O, defaultConstructor) {
+         var C = anObject(O).constructor;
+         var S;
+         return C === undefined || (S = anObject(C)[SPECIES$1]) == undefined ? defaultConstructor : aFunction$1(S);
        };
 
-       var ARRAY_BUFFER$1 = 'ArrayBuffer';
-       var ArrayBuffer$1 = arrayBuffer[ARRAY_BUFFER$1];
-       var NativeArrayBuffer$1 = global_1[ARRAY_BUFFER$1];
+       var ArrayBuffer$1 = arrayBuffer.ArrayBuffer;
+       var DataView$1 = arrayBuffer.DataView;
+       var nativeArrayBufferSlice = ArrayBuffer$1.prototype.slice;
 
-       // `ArrayBuffer` constructor
-       // https://tc39.github.io/ecma262/#sec-arraybuffer-constructor
-       _export({ global: true, forced: NativeArrayBuffer$1 !== ArrayBuffer$1 }, {
-         ArrayBuffer: ArrayBuffer$1
+       var INCORRECT_SLICE = fails(function () {
+         return !new ArrayBuffer$1(2).slice(1, undefined).byteLength;
        });
 
-       setSpecies(ARRAY_BUFFER$1);
-
-       var TO_STRING_TAG$1 = wellKnownSymbol('toStringTag');
-       var test = {};
-
-       test[TO_STRING_TAG$1] = 'z';
-
-       var toStringTagSupport = String(test) === '[object z]';
-
-       var TO_STRING_TAG$2 = wellKnownSymbol('toStringTag');
-       // ES3 wrong here
-       var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';
-
-       // fallback for IE11 Script Access Denied error
-       var tryGet = function (it, key) {
-         try {
-           return it[key];
-         } catch (error) { /* empty */ }
-       };
-
-       // getting tag from ES6+ `Object.prototype.toString`
-       var classof = toStringTagSupport ? classofRaw : function (it) {
-         var O, tag, result;
-         return it === undefined ? 'Undefined' : it === null ? 'Null'
-           // @@toStringTag case
-           : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG$2)) == 'string' ? tag
-           // builtinTag case
-           : CORRECT_ARGUMENTS ? classofRaw(O)
-           // ES3 arguments fallback
-           : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;
-       };
+       // `ArrayBuffer.prototype.slice` method
+       // https://tc39.es/ecma262/#sec-arraybuffer.prototype.slice
+       _export({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
+         slice: function slice(start, end) {
+           if (nativeArrayBufferSlice !== undefined && end === undefined) {
+             return nativeArrayBufferSlice.call(anObject(this), start); // FF fix
+           }
+           var length = anObject(this).byteLength;
+           var first = toAbsoluteIndex(start, length);
+           var fin = toAbsoluteIndex(end === undefined ? length : end, length);
+           var result = new (speciesConstructor(this, ArrayBuffer$1))(toLength(fin - first));
+           var viewSource = new DataView$1(this);
+           var viewTarget = new DataView$1(result);
+           var index = 0;
+           while (first < fin) {
+             viewTarget.setUint8(index++, viewSource.getUint8(first++));
+           } return result;
+         }
+       });
 
-       var defineProperty$5 = objectDefineProperty.f;
+       var defineProperty$4 = objectDefineProperty.f;
 
 
 
        var ObjectPrototype$3 = Object.prototype;
        var isPrototypeOf = ObjectPrototype$3.isPrototypeOf;
 
-       var TO_STRING_TAG$3 = wellKnownSymbol('toStringTag');
+       var TO_STRING_TAG$4 = wellKnownSymbol('toStringTag');
        var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
        // Fixing native typed arrays in Opera Presto crashes the browser, see #595
        var NATIVE_ARRAY_BUFFER_VIEWS = arrayBufferNative && !!objectSetPrototypeOf && classof(global_1.opera) !== 'Opera';
          Float64Array: 8
        };
 
+       var BigIntArrayConstructorsList = {
+         BigInt64Array: 8,
+         BigUint64Array: 8
+       };
+
        var isView = function isView(it) {
+         if (!isObject(it)) return false;
          var klass = classof(it);
-         return klass === 'DataView' || has(TypedArrayConstructorsList, klass);
+         return klass === 'DataView'
+           || has(TypedArrayConstructorsList, klass)
+           || has(BigIntArrayConstructorsList, klass);
        };
 
        var isTypedArray = function (it) {
-         return isObject(it) && has(TypedArrayConstructorsList, classof(it));
+         if (!isObject(it)) return false;
+         var klass = classof(it);
+         return has(TypedArrayConstructorsList, klass)
+           || has(BigIntArrayConstructorsList, klass);
        };
 
        var aTypedArray = function (it) {
 
        // WebKit bug - typed arrays constructors prototype is Object.prototype
        if (!NATIVE_ARRAY_BUFFER_VIEWS || typeof TypedArray != 'function' || TypedArray === Function.prototype) {
-         // eslint-disable-next-line no-shadow
+         // eslint-disable-next-line no-shadow -- safe
          TypedArray = function TypedArray() {
            throw TypeError('Incorrect invocation');
          };
          objectSetPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
        }
 
-       if (descriptors && !has(TypedArrayPrototype, TO_STRING_TAG$3)) {
+       if (descriptors && !has(TypedArrayPrototype, TO_STRING_TAG$4)) {
          TYPED_ARRAY_TAG_REQIRED = true;
-         defineProperty$5(TypedArrayPrototype, TO_STRING_TAG$3, { get: function () {
+         defineProperty$4(TypedArrayPrototype, TO_STRING_TAG$4, { get: function () {
            return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;
          } });
          for (NAME in TypedArrayConstructorsList) if (global_1[NAME]) {
        var NATIVE_ARRAY_BUFFER_VIEWS$1 = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
 
        // `ArrayBuffer.isView` method
-       // https://tc39.github.io/ecma262/#sec-arraybuffer.isview
+       // https://tc39.es/ecma262/#sec-arraybuffer.isview
        _export({ target: 'ArrayBuffer', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS$1 }, {
          isView: arrayBufferViewCore.isView
        });
 
-       var SPECIES$4 = wellKnownSymbol('species');
+       var SPECIES$2 = wellKnownSymbol('species');
 
-       // `SpeciesConstructor` abstract operation
-       // https://tc39.github.io/ecma262/#sec-speciesconstructor
-       var speciesConstructor = function (O, defaultConstructor) {
-         var C = anObject(O).constructor;
-         var S;
-         return C === undefined || (S = anObject(C)[SPECIES$4]) == undefined ? defaultConstructor : aFunction$1(S);
+       var setSpecies = function (CONSTRUCTOR_NAME) {
+         var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
+         var defineProperty = objectDefineProperty.f;
+
+         if (descriptors && Constructor && !Constructor[SPECIES$2]) {
+           defineProperty(Constructor, SPECIES$2, {
+             configurable: true,
+             get: function () { return this; }
+           });
+         }
        };
 
-       var ArrayBuffer$2 = arrayBuffer.ArrayBuffer;
-       var DataView$1 = arrayBuffer.DataView;
-       var nativeArrayBufferSlice = ArrayBuffer$2.prototype.slice;
+       var ARRAY_BUFFER$1 = 'ArrayBuffer';
+       var ArrayBuffer$2 = arrayBuffer[ARRAY_BUFFER$1];
+       var NativeArrayBuffer$1 = global_1[ARRAY_BUFFER$1];
 
-       var INCORRECT_SLICE = fails(function () {
-         return !new ArrayBuffer$2(2).slice(1, undefined).byteLength;
+       // `ArrayBuffer` constructor
+       // https://tc39.es/ecma262/#sec-arraybuffer-constructor
+       _export({ global: true, forced: NativeArrayBuffer$1 !== ArrayBuffer$2 }, {
+         ArrayBuffer: ArrayBuffer$2
        });
 
-       // `ArrayBuffer.prototype.slice` method
-       // https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice
-       _export({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
-         slice: function slice(start, end) {
-           if (nativeArrayBufferSlice !== undefined && end === undefined) {
-             return nativeArrayBufferSlice.call(anObject(this), start); // FF fix
-           }
-           var length = anObject(this).byteLength;
-           var first = toAbsoluteIndex(start, length);
-           var fin = toAbsoluteIndex(end === undefined ? length : end, length);
-           var result = new (speciesConstructor(this, ArrayBuffer$2))(toLength(fin - first));
-           var viewSource = new DataView$1(this);
-           var viewTarget = new DataView$1(result);
-           var index = 0;
-           while (first < fin) {
-             viewTarget.setUint8(index++, viewSource.getUint8(first++));
-           } return result;
+       setSpecies(ARRAY_BUFFER$1);
+
+       var arrayMethodIsStrict = function (METHOD_NAME, argument) {
+         var method = [][METHOD_NAME];
+         return !!method && fails(function () {
+           // eslint-disable-next-line no-useless-call,no-throw-literal -- required for testing
+           method.call(null, argument || function () { throw 1; }, 1);
+         });
+       };
+
+       var $indexOf = arrayIncludes.indexOf;
+
+
+       var nativeIndexOf = [].indexOf;
+
+       var NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;
+       var STRICT_METHOD = arrayMethodIsStrict('indexOf');
+
+       // `Array.prototype.indexOf` method
+       // https://tc39.es/ecma262/#sec-array.prototype.indexof
+       _export({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD }, {
+         indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
+           return NEGATIVE_ZERO
+             // convert -0 to +0
+             ? nativeIndexOf.apply(this, arguments) || 0
+             : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
-       // `DataView` constructor
-       // https://tc39.github.io/ecma262/#sec-dataview-constructor
-       _export({ global: true, forced: !arrayBufferNative }, {
-         DataView: arrayBuffer.DataView
+       var SPECIES$3 = wellKnownSymbol('species');
+
+       var arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
+         // We can't use this feature detection in V8 since it causes
+         // deoptimization and serious performance degradation
+         // https://github.com/zloirock/core-js/issues/677
+         return engineV8Version >= 51 || !fails(function () {
+           var array = [];
+           var constructor = array.constructor = {};
+           constructor[SPECIES$3] = function () {
+             return { foo: 1 };
+           };
+           return array[METHOD_NAME](Boolean).foo !== 1;
+         });
+       };
+
+       var $map = arrayIteration.map;
+
+
+       var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
+
+       // `Array.prototype.map` method
+       // https://tc39.es/ecma262/#sec-array.prototype.map
+       // with adding support of @@species
+       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
+         map: function map(callbackfn /* , thisArg */) {
+           return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+         }
        });
 
-       var defineProperty$6 = objectDefineProperty.f;
+       var $forEach$1 = arrayIteration.forEach;
 
-       var FunctionPrototype = Function.prototype;
-       var FunctionPrototypeToString = FunctionPrototype.toString;
-       var nameRE = /^\s*function ([^ (]*)/;
-       var NAME$1 = 'name';
 
-       // Function instances `.name` property
-       // https://tc39.github.io/ecma262/#sec-function-instances-name
-       if (descriptors && !(NAME$1 in FunctionPrototype)) {
-         defineProperty$6(FunctionPrototype, NAME$1, {
-           configurable: true,
-           get: function () {
-             try {
-               return FunctionPrototypeToString.call(this).match(nameRE)[1];
-             } catch (error) {
-               return '';
-             }
-           }
-         });
+       var STRICT_METHOD$1 = arrayMethodIsStrict('forEach');
+
+       // `Array.prototype.forEach` method implementation
+       // https://tc39.es/ecma262/#sec-array.prototype.foreach
+       var arrayForEach = !STRICT_METHOD$1 ? function forEach(callbackfn /* , thisArg */) {
+         return $forEach$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+       } : [].forEach;
+
+       // `Array.prototype.forEach` method
+       // https://tc39.es/ecma262/#sec-array.prototype.foreach
+       _export({ target: 'Array', proto: true, forced: [].forEach != arrayForEach }, {
+         forEach: arrayForEach
+       });
+
+       for (var COLLECTION_NAME$1 in domIterables) {
+         var Collection$1 = global_1[COLLECTION_NAME$1];
+         var CollectionPrototype$1 = Collection$1 && Collection$1.prototype;
+         // some Chrome versions have non-configurable methods on DOMTokenList
+         if (CollectionPrototype$1 && CollectionPrototype$1.forEach !== arrayForEach) try {
+           createNonEnumerableProperty(CollectionPrototype$1, 'forEach', arrayForEach);
+         } catch (error) {
+           CollectionPrototype$1.forEach = arrayForEach;
+         }
        }
 
-       // `Object.create` method
-       // https://tc39.github.io/ecma262/#sec-object.create
-       _export({ target: 'Object', stat: true, sham: !descriptors }, {
-         create: objectCreate
+       // `Array.isArray` method
+       // https://tc39.es/ecma262/#sec-array.isarray
+       _export({ target: 'Array', stat: true }, {
+         isArray: isArray
        });
 
        var nativeGetOwnPropertyNames$2 = objectGetOwnPropertyNamesExternal.f;
        var FAILS_ON_PRIMITIVES = fails(function () { return !Object.getOwnPropertyNames(1); });
 
        // `Object.getOwnPropertyNames` method
-       // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+       // https://tc39.es/ecma262/#sec-object.getownpropertynames
        _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
          getOwnPropertyNames: nativeGetOwnPropertyNames$2
        });
 
-       // `Object.prototype.toString` method implementation
-       // https://tc39.github.io/ecma262/#sec-object.prototype.tostring
-       var objectToString = toStringTagSupport ? {}.toString : function toString() {
-         return '[object ' + classof(this) + ']';
-       };
-
-       // `Object.prototype.toString` method
-       // https://tc39.github.io/ecma262/#sec-object.prototype.tostring
-       if (!toStringTagSupport) {
-         redefine(Object.prototype, 'toString', objectToString, { unsafe: true });
-       }
-
        var nativePromiseConstructor = global_1.Promise;
 
-       var ITERATOR$2 = wellKnownSymbol('iterator');
+       var ITERATOR$3 = wellKnownSymbol('iterator');
        var ArrayPrototype$1 = Array.prototype;
 
        // check on default Array iterator
        var isArrayIteratorMethod = function (it) {
-         return it !== undefined && (iterators.Array === it || ArrayPrototype$1[ITERATOR$2] === it);
+         return it !== undefined && (iterators.Array === it || ArrayPrototype$1[ITERATOR$3] === it);
        };
 
-       var ITERATOR$3 = wellKnownSymbol('iterator');
+       var ITERATOR$4 = wellKnownSymbol('iterator');
 
        var getIteratorMethod = function (it) {
-         if (it != undefined) return it[ITERATOR$3]
+         if (it != undefined) return it[ITERATOR$4]
            || it['@@iterator']
            || iterators[classof(it)];
        };
          } return new Result(false);
        };
 
-       var ITERATOR$4 = wellKnownSymbol('iterator');
+       var ITERATOR$5 = wellKnownSymbol('iterator');
        var SAFE_CLOSING = false;
 
        try {
              SAFE_CLOSING = true;
            }
          };
-         iteratorWithReturn[ITERATOR$4] = function () {
+         iteratorWithReturn[ITERATOR$5] = function () {
            return this;
          };
-         // eslint-disable-next-line no-throw-literal
+         // eslint-disable-next-line no-throw-literal -- required for testing
          Array.from(iteratorWithReturn, function () { throw 2; });
        } catch (error) { /* empty */ }
 
          var ITERATION_SUPPORT = false;
          try {
            var object = {};
-           object[ITERATOR$4] = function () {
+           object[ITERATOR$5] = function () {
              return {
                next: function () {
                  return { done: ITERATION_SUPPORT = true };
 
        var engineIsIos = /(iphone|ipod|ipad).*applewebkit/i.test(engineUserAgent);
 
-       var engineIsNode = classofRaw(global_1.process) == 'process';
-
        var location$1 = global_1.location;
        var set$2 = global_1.setImmediate;
        var clear = global_1.clearImmediate;
        var defer, channel, port;
 
        var run = function (id) {
-         // eslint-disable-next-line no-prototype-builtins
+         // eslint-disable-next-line no-prototype-builtins -- safe
          if (queue.hasOwnProperty(id)) {
            var fn = queue[id];
            delete queue[id];
            var i = 1;
            while (arguments.length > i) args.push(arguments[i++]);
            queue[++counter] = function () {
-             // eslint-disable-next-line no-new-func
+             // eslint-disable-next-line no-new-func -- spec requirement
              (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);
            };
            defer(counter);
          clear: clear
        };
 
+       var engineIsWebosWebkit = /web0s(?!.*chrome)/i.test(engineUserAgent);
+
        var getOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor.f;
        var macrotask = task.set;
 
 
 
+
        var MutationObserver = global_1.MutationObserver || global_1.WebKitMutationObserver;
        var document$2 = global_1.document;
        var process$3 = global_1.process;
          };
 
          // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
-         if (!engineIsIos && !engineIsNode && MutationObserver && document$2) {
+         // also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
+         if (!engineIsIos && !engineIsNode && !engineIsWebosWebkit && MutationObserver && document$2) {
            toggle = true;
            node = document$2.createTextNode('');
            new MutationObserver(flush).observe(node, { characterData: true });
 
 
 
-       var SPECIES$5 = wellKnownSymbol('species');
+       var SPECIES$4 = wellKnownSymbol('species');
        var PROMISE = 'Promise';
-       var getInternalState$3 = internalState.get;
-       var setInternalState$3 = internalState.set;
+       var getInternalState$4 = internalState.get;
+       var setInternalState$4 = internalState.set;
        var getInternalPromiseState = internalState.getterFor(PROMISE);
        var PromiseConstructor = nativePromiseConstructor;
        var TypeError$1 = global_1.TypeError;
            exec(function () { /* empty */ }, function () { /* empty */ });
          };
          var constructor = promise.constructor = {};
-         constructor[SPECIES$5] = FakePromise;
+         constructor[SPECIES$4] = FakePromise;
          return !(promise.then(function () { /* empty */ }) instanceof FakePromise);
        });
 
            anInstance(this, PromiseConstructor, PROMISE);
            aFunction$1(executor);
            Internal.call(this);
-           var state = getInternalState$3(this);
+           var state = getInternalState$4(this);
            try {
              executor(bind(internalResolve, state), bind(internalReject, state));
            } catch (error) {
              internalReject(state, error);
            }
          };
-         // eslint-disable-next-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
          Internal = function Promise(executor) {
-           setInternalState$3(this, {
+           setInternalState$4(this, {
              type: PROMISE,
              done: false,
              notified: false,
          };
          Internal.prototype = redefineAll(PromiseConstructor.prototype, {
            // `Promise.prototype.then` method
-           // https://tc39.github.io/ecma262/#sec-promise.prototype.then
+           // https://tc39.es/ecma262/#sec-promise.prototype.then
            then: function then(onFulfilled, onRejected) {
              var state = getInternalPromiseState(this);
              var reaction = newPromiseCapability$1(speciesConstructor(this, PromiseConstructor));
              return reaction.promise;
            },
            // `Promise.prototype.catch` method
-           // https://tc39.github.io/ecma262/#sec-promise.prototype.catch
+           // https://tc39.es/ecma262/#sec-promise.prototype.catch
            'catch': function (onRejected) {
              return this.then(undefined, onRejected);
            }
          });
          OwnPromiseCapability = function () {
            var promise = new Internal();
-           var state = getInternalState$3(promise);
+           var state = getInternalState$4(promise);
            this.promise = promise;
            this.resolve = bind(internalResolve, state);
            this.reject = bind(internalReject, state);
 
            // wrap fetch result
            if (typeof $fetch == 'function') _export({ global: true, enumerable: true, forced: true }, {
-             // eslint-disable-next-line no-unused-vars
+             // eslint-disable-next-line no-unused-vars -- required for `.length`
              fetch: function fetch(input /* , init */) {
                return promiseResolve(PromiseConstructor, $fetch.apply(global_1, arguments));
              }
        // statics
        _export({ target: PROMISE, stat: true, forced: FORCED }, {
          // `Promise.reject` method
-         // https://tc39.github.io/ecma262/#sec-promise.reject
+         // https://tc39.es/ecma262/#sec-promise.reject
          reject: function reject(r) {
            var capability = newPromiseCapability$1(this);
            capability.reject.call(undefined, r);
 
        _export({ target: PROMISE, stat: true, forced:  FORCED }, {
          // `Promise.resolve` method
-         // https://tc39.github.io/ecma262/#sec-promise.resolve
+         // https://tc39.es/ecma262/#sec-promise.resolve
          resolve: function resolve(x) {
            return promiseResolve( this, x);
          }
 
        _export({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {
          // `Promise.all` method
-         // https://tc39.github.io/ecma262/#sec-promise.all
+         // https://tc39.es/ecma262/#sec-promise.all
          all: function all(iterable) {
            var C = this;
            var capability = newPromiseCapability$1(C);
            return capability.promise;
          },
          // `Promise.race` method
-         // https://tc39.github.io/ecma262/#sec-promise.race
+         // https://tc39.es/ecma262/#sec-promise.race
          race: function race(iterable) {
            var C = this;
            var capability = newPromiseCapability$1(C);
          }
        });
 
-       // `RegExp.prototype.flags` getter implementation
-       // https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
-       var regexpFlags = function () {
-         var that = anObject(this);
-         var result = '';
-         if (that.global) result += 'g';
-         if (that.ignoreCase) result += 'i';
-         if (that.multiline) result += 'm';
-         if (that.dotAll) result += 's';
-         if (that.unicode) result += 'u';
-         if (that.sticky) result += 'y';
-         return result;
-       };
+       /* eslint-disable no-new -- required for testing */
 
-       // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError,
-       // so we use an intermediate function.
-       function RE(s, f) {
-         return RegExp(s, f);
-       }
 
-       var UNSUPPORTED_Y = fails(function () {
-         // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
-         var re = RE('a', 'y');
-         re.lastIndex = 2;
-         return re.exec('abcd') != null;
-       });
 
-       var BROKEN_CARET = fails(function () {
-         // https://bugzilla.mozilla.org/show_bug.cgi?id=773687
-         var re = RE('^r', 'gy');
-         re.lastIndex = 2;
-         return re.exec('str') != null;
+       var NATIVE_ARRAY_BUFFER_VIEWS$2 = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
+
+       var ArrayBuffer$3 = global_1.ArrayBuffer;
+       var Int8Array$2 = global_1.Int8Array;
+
+       var typedArrayConstructorsRequireWrappers = !NATIVE_ARRAY_BUFFER_VIEWS$2 || !fails(function () {
+         Int8Array$2(1);
+       }) || !fails(function () {
+         new Int8Array$2(-1);
+       }) || !checkCorrectnessOfIteration(function (iterable) {
+         new Int8Array$2();
+         new Int8Array$2(null);
+         new Int8Array$2(1.5);
+         new Int8Array$2(iterable);
+       }, true) || fails(function () {
+         // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill
+         return new Int8Array$2(new ArrayBuffer$3(2), 1, undefined).length !== 1;
        });
 
-       var regexpStickyHelpers = {
-               UNSUPPORTED_Y: UNSUPPORTED_Y,
-               BROKEN_CARET: BROKEN_CARET
+       var toPositiveInteger = function (it) {
+         var result = toInteger(it);
+         if (result < 0) throw RangeError("The argument can't be less than 0");
+         return result;
        };
 
-       var nativeExec = RegExp.prototype.exec;
-       // This always refers to the native implementation, because the
-       // String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
-       // which loads this file before patching the method.
-       var nativeReplace = String.prototype.replace;
-
-       var patchedExec = nativeExec;
+       var toOffset = function (it, BYTES) {
+         var offset = toPositiveInteger(it);
+         if (offset % BYTES) throw RangeError('Wrong offset');
+         return offset;
+       };
 
-       var UPDATES_LAST_INDEX_WRONG = (function () {
-         var re1 = /a/;
-         var re2 = /b*/g;
-         nativeExec.call(re1, 'a');
-         nativeExec.call(re2, 'a');
-         return re1.lastIndex !== 0 || re2.lastIndex !== 0;
-       })();
+       var aTypedArrayConstructor$1 = arrayBufferViewCore.aTypedArrayConstructor;
 
-       var UNSUPPORTED_Y$1 = regexpStickyHelpers.UNSUPPORTED_Y || regexpStickyHelpers.BROKEN_CARET;
+       var typedArrayFrom = function from(source /* , mapfn, thisArg */) {
+         var O = toObject(source);
+         var argumentsLength = arguments.length;
+         var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
+         var mapping = mapfn !== undefined;
+         var iteratorMethod = getIteratorMethod(O);
+         var i, length, result, step, iterator, next;
+         if (iteratorMethod != undefined && !isArrayIteratorMethod(iteratorMethod)) {
+           iterator = iteratorMethod.call(O);
+           next = iterator.next;
+           O = [];
+           while (!(step = next.call(iterator)).done) {
+             O.push(step.value);
+           }
+         }
+         if (mapping && argumentsLength > 2) {
+           mapfn = functionBindContext(mapfn, arguments[2], 2);
+         }
+         length = toLength(O.length);
+         result = new (aTypedArrayConstructor$1(this))(length);
+         for (i = 0; length > i; i++) {
+           result[i] = mapping ? mapfn(O[i], i) : O[i];
+         }
+         return result;
+       };
 
-       // nonparticipating capturing group, copied from es5-shim's String#split patch.
-       var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
+       // makes subclassing work correct for wrapped built-ins
+       var inheritIfRequired = function ($this, dummy, Wrapper) {
+         var NewTarget, NewTargetPrototype;
+         if (
+           // it can work only with native `setPrototypeOf`
+           objectSetPrototypeOf &&
+           // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
+           typeof (NewTarget = dummy.constructor) == 'function' &&
+           NewTarget !== Wrapper &&
+           isObject(NewTargetPrototype = NewTarget.prototype) &&
+           NewTargetPrototype !== Wrapper.prototype
+         ) objectSetPrototypeOf($this, NewTargetPrototype);
+         return $this;
+       };
 
-       var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y$1;
+       var typedArrayConstructor = createCommonjsModule(function (module) {
 
-       if (PATCH) {
-         patchedExec = function exec(str) {
-           var re = this;
-           var lastIndex, reCopy, match, i;
-           var sticky = UNSUPPORTED_Y$1 && re.sticky;
-           var flags = regexpFlags.call(re);
-           var source = re.source;
-           var charsAdded = 0;
-           var strCopy = str;
 
-           if (sticky) {
-             flags = flags.replace('y', '');
-             if (flags.indexOf('g') === -1) {
-               flags += 'g';
-             }
 
-             strCopy = String(str).slice(re.lastIndex);
-             // Support anchored sticky behavior.
-             if (re.lastIndex > 0 && (!re.multiline || re.multiline && str[re.lastIndex - 1] !== '\n')) {
-               source = '(?: ' + source + ')';
-               strCopy = ' ' + strCopy;
-               charsAdded++;
-             }
-             // ^(? + rx + ) is needed, in combination with some str slicing, to
-             // simulate the 'y' flag.
-             reCopy = new RegExp('^(?:' + source + ')', flags);
-           }
 
-           if (NPCG_INCLUDED) {
-             reCopy = new RegExp('^' + source + '$(?!\\s)', flags);
-           }
-           if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;
 
-           match = nativeExec.call(sticky ? reCopy : re, strCopy);
 
-           if (sticky) {
-             if (match) {
-               match.input = match.input.slice(charsAdded);
-               match[0] = match[0].slice(charsAdded);
-               match.index = re.lastIndex;
-               re.lastIndex += match[0].length;
-             } else re.lastIndex = 0;
-           } else if (UPDATES_LAST_INDEX_WRONG && match) {
-             re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
-           }
-           if (NPCG_INCLUDED && match && match.length > 1) {
-             // Fix browsers whose `exec` methods don't consistently return `undefined`
-             // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
-             nativeReplace.call(match[0], reCopy, function () {
-               for (i = 1; i < arguments.length - 2; i++) {
-                 if (arguments[i] === undefined) match[i] = undefined;
-               }
-             });
-           }
 
-           return match;
-         };
-       }
 
-       var regexpExec = patchedExec;
 
-       _export({ target: 'RegExp', proto: true, forced: /./.exec !== regexpExec }, {
-         exec: regexpExec
-       });
 
-       var TO_STRING$1 = 'toString';
-       var RegExpPrototype = RegExp.prototype;
-       var nativeToString = RegExpPrototype[TO_STRING$1];
 
-       var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
-       // FF44- RegExp#toString has a wrong name
-       var INCORRECT_NAME = nativeToString.name != TO_STRING$1;
 
-       // `RegExp.prototype.toString` method
-       // https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring
-       if (NOT_GENERIC || INCORRECT_NAME) {
-         redefine(RegExp.prototype, TO_STRING$1, function toString() {
-           var R = anObject(this);
-           var p = String(R.source);
-           var rf = R.flags;
-           var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? regexpFlags.call(R) : rf);
-           return '/' + p + '/' + f;
-         }, { unsafe: true });
-       }
 
-       // `String.prototype.{ codePointAt, at }` methods implementation
-       var createMethod$2 = function (CONVERT_TO_STRING) {
-         return function ($this, pos) {
-           var S = String(requireObjectCoercible($this));
-           var position = toInteger(pos);
-           var size = S.length;
-           var first, second;
-           if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
-           first = S.charCodeAt(position);
-           return first < 0xD800 || first > 0xDBFF || position + 1 === size
-             || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF
-               ? CONVERT_TO_STRING ? S.charAt(position) : first
-               : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
-         };
-       };
 
-       var stringMultibyte = {
-         // `String.prototype.codePointAt` method
-         // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat
-         codeAt: createMethod$2(false),
-         // `String.prototype.at` method
-         // https://github.com/mathiasbynens/String.prototype.at
-         charAt: createMethod$2(true)
-       };
 
-       var charAt = stringMultibyte.charAt;
 
 
 
-       var STRING_ITERATOR = 'String Iterator';
-       var setInternalState$4 = internalState.set;
-       var getInternalState$4 = internalState.getterFor(STRING_ITERATOR);
+       var getOwnPropertyNames = objectGetOwnPropertyNames.f;
 
-       // `String.prototype[@@iterator]` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator
-       defineIterator(String, 'String', function (iterated) {
-         setInternalState$4(this, {
-           type: STRING_ITERATOR,
-           string: String(iterated),
-           index: 0
-         });
-       // `%StringIteratorPrototype%.next` method
-       // https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next
-       }, function next() {
-         var state = getInternalState$4(this);
-         var string = state.string;
-         var index = state.index;
-         var point;
-         if (index >= string.length) return { value: undefined, done: true };
-         point = charAt(string, index);
-         state.index += point.length;
-         return { value: point, done: false };
-       });
+       var forEach = arrayIteration.forEach;
 
-       // TODO: Remove from `core-js@4` since it's moved to entry points
 
 
 
 
 
+       var getInternalState = internalState.get;
+       var setInternalState = internalState.set;
+       var nativeDefineProperty = objectDefineProperty.f;
+       var nativeGetOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
+       var round = Math.round;
+       var RangeError = global_1.RangeError;
+       var ArrayBuffer = arrayBuffer.ArrayBuffer;
+       var DataView = arrayBuffer.DataView;
+       var NATIVE_ARRAY_BUFFER_VIEWS = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
+       var TYPED_ARRAY_TAG = arrayBufferViewCore.TYPED_ARRAY_TAG;
+       var TypedArray = arrayBufferViewCore.TypedArray;
+       var TypedArrayPrototype = arrayBufferViewCore.TypedArrayPrototype;
+       var aTypedArrayConstructor = arrayBufferViewCore.aTypedArrayConstructor;
+       var isTypedArray = arrayBufferViewCore.isTypedArray;
+       var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
+       var WRONG_LENGTH = 'Wrong length';
 
+       var fromList = function (C, list) {
+         var index = 0;
+         var length = list.length;
+         var result = new (aTypedArrayConstructor(C))(length);
+         while (length > index) result[index] = list[index++];
+         return result;
+       };
 
-       var SPECIES$6 = wellKnownSymbol('species');
+       var addGetter = function (it, key) {
+         nativeDefineProperty(it, key, { get: function () {
+           return getInternalState(this)[key];
+         } });
+       };
 
-       var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
-         // #replace needs built-in support for named groups.
-         // #match works fine because it just return the exec results, even if it has
-         // a "grops" property.
-         var re = /./;
-         re.exec = function () {
-           var result = [];
-           result.groups = { a: '7' };
-           return result;
-         };
-         return ''.replace(re, '$<a>') !== '7';
-       });
+       var isArrayBuffer = function (it) {
+         var klass;
+         return it instanceof ArrayBuffer || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';
+       };
 
-       // IE <= 11 replaces $0 with the whole match, as if it was $&
-       // https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
-       var REPLACE_KEEPS_$0 = (function () {
-         return 'a'.replace(/./, '$0') === '$0';
-       })();
+       var isTypedArrayIndex = function (target, key) {
+         return isTypedArray(target)
+           && typeof key != 'symbol'
+           && key in target
+           && String(+key) == String(key);
+       };
 
-       var REPLACE = wellKnownSymbol('replace');
-       // Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
-       var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
-         if (/./[REPLACE]) {
-           return /./[REPLACE]('a', '$0') === '';
-         }
-         return false;
-       })();
+       var wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {
+         return isTypedArrayIndex(target, key = toPrimitive(key, true))
+           ? createPropertyDescriptor(2, target[key])
+           : nativeGetOwnPropertyDescriptor(target, key);
+       };
 
-       // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
-       // Weex JS has frozen built-in prototypes, so use try / catch wrapper
-       var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
-         var re = /(?:)/;
-         var originalExec = re.exec;
-         re.exec = function () { return originalExec.apply(this, arguments); };
-         var result = 'ab'.split(re);
-         return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
-       });
+       var wrappedDefineProperty = function defineProperty(target, key, descriptor) {
+         if (isTypedArrayIndex(target, key = toPrimitive(key, true))
+           && isObject(descriptor)
+           && has(descriptor, 'value')
+           && !has(descriptor, 'get')
+           && !has(descriptor, 'set')
+           // TODO: add validation descriptor w/o calling accessors
+           && !descriptor.configurable
+           && (!has(descriptor, 'writable') || descriptor.writable)
+           && (!has(descriptor, 'enumerable') || descriptor.enumerable)
+         ) {
+           target[key] = descriptor.value;
+           return target;
+         } return nativeDefineProperty(target, key, descriptor);
+       };
 
-       var fixRegexpWellKnownSymbolLogic = function (KEY, length, exec, sham) {
-         var SYMBOL = wellKnownSymbol(KEY);
+       if (descriptors) {
+         if (!NATIVE_ARRAY_BUFFER_VIEWS) {
+           objectGetOwnPropertyDescriptor.f = wrappedGetOwnPropertyDescriptor;
+           objectDefineProperty.f = wrappedDefineProperty;
+           addGetter(TypedArrayPrototype, 'buffer');
+           addGetter(TypedArrayPrototype, 'byteOffset');
+           addGetter(TypedArrayPrototype, 'byteLength');
+           addGetter(TypedArrayPrototype, 'length');
+         }
 
-         var DELEGATES_TO_SYMBOL = !fails(function () {
-           // String methods call symbol-named RegEp methods
-           var O = {};
-           O[SYMBOL] = function () { return 7; };
-           return ''[KEY](O) != 7;
+         _export({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
+           getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,
+           defineProperty: wrappedDefineProperty
          });
 
-         var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
-           // Symbol-named RegExp methods call .exec
-           var execCalled = false;
-           var re = /a/;
-
-           if (KEY === 'split') {
-             // We can't use real regex here since it causes deoptimization
-             // and serious performance degradation in V8
-             // https://github.com/zloirock/core-js/issues/306
-             re = {};
-             // RegExp[@@split] doesn't call the regex's exec method, but first creates
-             // a new one. We need to return the patched regex when creating the new one.
-             re.constructor = {};
-             re.constructor[SPECIES$6] = function () { return re; };
-             re.flags = '';
-             re[SYMBOL] = /./[SYMBOL];
-           }
+         module.exports = function (TYPE, wrapper, CLAMPED) {
+           var BYTES = TYPE.match(/\d+$/)[0] / 8;
+           var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';
+           var GETTER = 'get' + TYPE;
+           var SETTER = 'set' + TYPE;
+           var NativeTypedArrayConstructor = global_1[CONSTRUCTOR_NAME];
+           var TypedArrayConstructor = NativeTypedArrayConstructor;
+           var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;
+           var exported = {};
 
-           re.exec = function () { execCalled = true; return null; };
+           var getter = function (that, index) {
+             var data = getInternalState(that);
+             return data.view[GETTER](index * BYTES + data.byteOffset, true);
+           };
 
-           re[SYMBOL]('');
-           return !execCalled;
-         });
+           var setter = function (that, index, value) {
+             var data = getInternalState(that);
+             if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;
+             data.view[SETTER](index * BYTES + data.byteOffset, value, true);
+           };
 
-         if (
-           !DELEGATES_TO_SYMBOL ||
-           !DELEGATES_TO_EXEC ||
-           (KEY === 'replace' && !(
-             REPLACE_SUPPORTS_NAMED_GROUPS &&
-             REPLACE_KEEPS_$0 &&
-             !REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
-           )) ||
-           (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
-         ) {
-           var nativeRegExpMethod = /./[SYMBOL];
-           var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
-             if (regexp.exec === regexpExec) {
-               if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
-                 // The native String method already delegates to @@method (this
-                 // polyfilled function), leasing to infinite recursion.
-                 // We avoid it by directly calling the native @@method method.
-                 return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
-               }
-               return { done: true, value: nativeMethod.call(str, regexp, arg2) };
-             }
-             return { done: false };
-           }, {
-             REPLACE_KEEPS_$0: REPLACE_KEEPS_$0,
-             REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE: REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
-           });
-           var stringMethod = methods[0];
-           var regexMethod = methods[1];
-
-           redefine(String.prototype, KEY, stringMethod);
-           redefine(RegExp.prototype, SYMBOL, length == 2
-             // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
-             // 21.2.5.11 RegExp.prototype[@@split](string, limit)
-             ? function (string, arg) { return regexMethod.call(string, this, arg); }
-             // 21.2.5.6 RegExp.prototype[@@match](string)
-             // 21.2.5.9 RegExp.prototype[@@search](string)
-             : function (string) { return regexMethod.call(string, this); }
-           );
-         }
+           var addElement = function (that, index) {
+             nativeDefineProperty(that, index, {
+               get: function () {
+                 return getter(this, index);
+               },
+               set: function (value) {
+                 return setter(this, index, value);
+               },
+               enumerable: true
+             });
+           };
 
-         if (sham) createNonEnumerableProperty(RegExp.prototype[SYMBOL], 'sham', true);
-       };
+           if (!NATIVE_ARRAY_BUFFER_VIEWS) {
+             TypedArrayConstructor = wrapper(function (that, data, offset, $length) {
+               anInstance(that, TypedArrayConstructor, CONSTRUCTOR_NAME);
+               var index = 0;
+               var byteOffset = 0;
+               var buffer, byteLength, length;
+               if (!isObject(data)) {
+                 length = toIndex(data);
+                 byteLength = length * BYTES;
+                 buffer = new ArrayBuffer(byteLength);
+               } else if (isArrayBuffer(data)) {
+                 buffer = data;
+                 byteOffset = toOffset(offset, BYTES);
+                 var $len = data.byteLength;
+                 if ($length === undefined) {
+                   if ($len % BYTES) throw RangeError(WRONG_LENGTH);
+                   byteLength = $len - byteOffset;
+                   if (byteLength < 0) throw RangeError(WRONG_LENGTH);
+                 } else {
+                   byteLength = toLength($length) * BYTES;
+                   if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);
+                 }
+                 length = byteLength / BYTES;
+               } else if (isTypedArray(data)) {
+                 return fromList(TypedArrayConstructor, data);
+               } else {
+                 return typedArrayFrom.call(TypedArrayConstructor, data);
+               }
+               setInternalState(that, {
+                 buffer: buffer,
+                 byteOffset: byteOffset,
+                 byteLength: byteLength,
+                 length: length,
+                 view: new DataView(buffer)
+               });
+               while (index < length) addElement(that, index++);
+             });
 
-       var charAt$1 = stringMultibyte.charAt;
+             if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
+             TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = objectCreate(TypedArrayPrototype);
+           } else if (typedArrayConstructorsRequireWrappers) {
+             TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {
+               anInstance(dummy, TypedArrayConstructor, CONSTRUCTOR_NAME);
+               return inheritIfRequired(function () {
+                 if (!isObject(data)) return new NativeTypedArrayConstructor(toIndex(data));
+                 if (isArrayBuffer(data)) return $length !== undefined
+                   ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)
+                   : typedArrayOffset !== undefined
+                     ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))
+                     : new NativeTypedArrayConstructor(data);
+                 if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);
+                 return typedArrayFrom.call(TypedArrayConstructor, data);
+               }(), dummy, TypedArrayConstructor);
+             });
 
-       // `AdvanceStringIndex` abstract operation
-       // https://tc39.github.io/ecma262/#sec-advancestringindex
-       var advanceStringIndex = function (S, index, unicode) {
-         return index + (unicode ? charAt$1(S, index).length : 1);
-       };
+             if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
+             forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {
+               if (!(key in TypedArrayConstructor)) {
+                 createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);
+               }
+             });
+             TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;
+           }
 
-       // `RegExpExec` abstract operation
-       // https://tc39.github.io/ecma262/#sec-regexpexec
-       var regexpExecAbstract = function (R, S) {
-         var exec = R.exec;
-         if (typeof exec === 'function') {
-           var result = exec.call(R, S);
-           if (typeof result !== 'object') {
-             throw TypeError('RegExp exec method returned something other than an Object or null');
+           if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {
+             createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);
            }
-           return result;
-         }
 
-         if (classofRaw(R) !== 'RegExp') {
-           throw TypeError('RegExp#exec called on incompatible receiver');
-         }
+           if (TYPED_ARRAY_TAG) {
+             createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);
+           }
 
-         return regexpExec.call(R, S);
-       };
+           exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;
 
-       var max$2 = Math.max;
-       var min$2 = Math.min;
-       var floor$2 = Math.floor;
-       var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d\d?|<[^>]*>)/g;
-       var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d\d?)/g;
+           _export({
+             global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS
+           }, exported);
 
-       var maybeToString = function (it) {
-         return it === undefined ? it : String(it);
-       };
+           if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {
+             createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);
+           }
 
-       // @@replace logic
-       fixRegexpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, maybeCallNative, reason) {
-         var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = reason.REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE;
-         var REPLACE_KEEPS_$0 = reason.REPLACE_KEEPS_$0;
-         var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
+           if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {
+             createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);
+           }
 
-         return [
-           // `String.prototype.replace` method
-           // https://tc39.github.io/ecma262/#sec-string.prototype.replace
-           function replace(searchValue, replaceValue) {
-             var O = requireObjectCoercible(this);
-             var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
-             return replacer !== undefined
-               ? replacer.call(searchValue, O, replaceValue)
-               : nativeReplace.call(String(O), searchValue, replaceValue);
-           },
-           // `RegExp.prototype[@@replace]` method
-           // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
-           function (regexp, replaceValue) {
-             if (
-               (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||
-               (typeof replaceValue === 'string' && replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1)
-             ) {
-               var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);
-               if (res.done) return res.value;
-             }
+           setSpecies(CONSTRUCTOR_NAME);
+         };
+       } else module.exports = function () { /* empty */ };
+       });
 
-             var rx = anObject(regexp);
-             var S = String(this);
+       // `Uint8Array` constructor
+       // https://tc39.es/ecma262/#sec-typedarray-objects
+       typedArrayConstructor('Uint8', function (init) {
+         return function Uint8Array(data, byteOffset, length) {
+           return init(this, data, byteOffset, length);
+         };
+       });
 
-             var functionalReplace = typeof replaceValue === 'function';
-             if (!functionalReplace) replaceValue = String(replaceValue);
+       var min$2 = Math.min;
 
-             var global = rx.global;
-             if (global) {
-               var fullUnicode = rx.unicode;
-               rx.lastIndex = 0;
-             }
-             var results = [];
-             while (true) {
-               var result = regexpExecAbstract(rx, S);
-               if (result === null) break;
+       // `Array.prototype.copyWithin` method implementation
+       // https://tc39.es/ecma262/#sec-array.prototype.copywithin
+       var arrayCopyWithin = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
+         var O = toObject(this);
+         var len = toLength(O.length);
+         var to = toAbsoluteIndex(target, len);
+         var from = toAbsoluteIndex(start, len);
+         var end = arguments.length > 2 ? arguments[2] : undefined;
+         var count = min$2((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
+         var inc = 1;
+         if (from < to && to < from + count) {
+           inc = -1;
+           from += count - 1;
+           to += count - 1;
+         }
+         while (count-- > 0) {
+           if (from in O) O[to] = O[from];
+           else delete O[to];
+           to += inc;
+           from += inc;
+         } return O;
+       };
 
-               results.push(result);
-               if (!global) break;
+       var aTypedArray$1 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$1 = arrayBufferViewCore.exportTypedArrayMethod;
 
-               var matchStr = String(result[0]);
-               if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
-             }
+       // `%TypedArray%.prototype.copyWithin` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.copywithin
+       exportTypedArrayMethod$1('copyWithin', function copyWithin(target, start /* , end */) {
+         return arrayCopyWithin.call(aTypedArray$1(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
+       });
 
-             var accumulatedResult = '';
-             var nextSourcePosition = 0;
-             for (var i = 0; i < results.length; i++) {
-               result = results[i];
+       var $every = arrayIteration.every;
 
-               var matched = String(result[0]);
-               var position = max$2(min$2(toInteger(result.index), S.length), 0);
-               var captures = [];
-               // NOTE: This is equivalent to
-               //   captures = result.slice(1).map(maybeToString)
-               // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
-               // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
-               // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
-               for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
-               var namedCaptures = result.groups;
-               if (functionalReplace) {
-                 var replacerArgs = [matched].concat(captures, position, S);
-                 if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
-                 var replacement = String(replaceValue.apply(undefined, replacerArgs));
-               } else {
-                 replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
-               }
-               if (position >= nextSourcePosition) {
-                 accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
-                 nextSourcePosition = position + matched.length;
-               }
-             }
-             return accumulatedResult + S.slice(nextSourcePosition);
-           }
-         ];
+       var aTypedArray$2 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$2 = arrayBufferViewCore.exportTypedArrayMethod;
 
-         // https://tc39.github.io/ecma262/#sec-getsubstitution
-         function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
-           var tailPos = position + matched.length;
-           var m = captures.length;
-           var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
-           if (namedCaptures !== undefined) {
-             namedCaptures = toObject(namedCaptures);
-             symbols = SUBSTITUTION_SYMBOLS;
-           }
-           return nativeReplace.call(replacement, symbols, function (match, ch) {
-             var capture;
-             switch (ch.charAt(0)) {
-               case '$': return '$';
-               case '&': return matched;
-               case '`': return str.slice(0, position);
-               case "'": return str.slice(tailPos);
-               case '<':
-                 capture = namedCaptures[ch.slice(1, -1)];
-                 break;
-               default: // \d\d?
-                 var n = +ch;
-                 if (n === 0) return match;
-                 if (n > m) {
-                   var f = floor$2(n / 10);
-                   if (f === 0) return match;
-                   if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
-                   return match;
-                 }
-                 capture = captures[n - 1];
-             }
-             return capture === undefined ? '' : capture;
-           });
-         }
+       // `%TypedArray%.prototype.every` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.every
+       exportTypedArrayMethod$2('every', function every(callbackfn /* , thisArg */) {
+         return $every(aTypedArray$2(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        });
 
-       var MATCH = wellKnownSymbol('match');
+       var aTypedArray$3 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$3 = arrayBufferViewCore.exportTypedArrayMethod;
 
-       // `IsRegExp` abstract operation
-       // https://tc39.github.io/ecma262/#sec-isregexp
-       var isRegexp = function (it) {
-         var isRegExp;
-         return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classofRaw(it) == 'RegExp');
-       };
+       // `%TypedArray%.prototype.fill` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.fill
+       // eslint-disable-next-line no-unused-vars -- required for `.length`
+       exportTypedArrayMethod$3('fill', function fill(value /* , start, end */) {
+         return arrayFill.apply(aTypedArray$3(this), arguments);
+       });
 
-       var arrayPush = [].push;
-       var min$3 = Math.min;
-       var MAX_UINT32 = 0xFFFFFFFF;
+       var aTypedArrayConstructor$2 = arrayBufferViewCore.aTypedArrayConstructor;
 
-       // babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError
-       var SUPPORTS_Y = !fails(function () { return !RegExp(MAX_UINT32, 'y'); });
 
-       // @@split logic
-       fixRegexpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCallNative) {
-         var internalSplit;
-         if (
-           'abbc'.split(/(b)*/)[1] == 'c' ||
-           'test'.split(/(?:)/, -1).length != 4 ||
-           'ab'.split(/(?:ab)*/).length != 2 ||
-           '.'.split(/(.?)(.?)/).length != 4 ||
-           '.'.split(/()()/).length > 1 ||
-           ''.split(/.?/).length
-         ) {
-           // based on es5-shim implementation, need to rework it
-           internalSplit = function (separator, limit) {
-             var string = String(requireObjectCoercible(this));
-             var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
-             if (lim === 0) return [];
-             if (separator === undefined) return [string];
-             // If `separator` is not a regex, use native split
-             if (!isRegexp(separator)) {
-               return nativeSplit.call(string, separator, lim);
-             }
-             var output = [];
-             var flags = (separator.ignoreCase ? 'i' : '') +
-                         (separator.multiline ? 'm' : '') +
-                         (separator.unicode ? 'u' : '') +
-                         (separator.sticky ? 'y' : '');
-             var lastLastIndex = 0;
-             // Make `global` and avoid `lastIndex` issues by working with a copy
-             var separatorCopy = new RegExp(separator.source, flags + 'g');
-             var match, lastIndex, lastLength;
-             while (match = regexpExec.call(separatorCopy, string)) {
-               lastIndex = separatorCopy.lastIndex;
-               if (lastIndex > lastLastIndex) {
-                 output.push(string.slice(lastLastIndex, match.index));
-                 if (match.length > 1 && match.index < string.length) arrayPush.apply(output, match.slice(1));
-                 lastLength = match[0].length;
-                 lastLastIndex = lastIndex;
-                 if (output.length >= lim) break;
-               }
-               if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop
-             }
-             if (lastLastIndex === string.length) {
-               if (lastLength || !separatorCopy.test('')) output.push('');
-             } else output.push(string.slice(lastLastIndex));
-             return output.length > lim ? output.slice(0, lim) : output;
-           };
-         // Chakra, V8
-         } else if ('0'.split(undefined, 0).length) {
-           internalSplit = function (separator, limit) {
-             return separator === undefined && limit === 0 ? [] : nativeSplit.call(this, separator, limit);
-           };
-         } else internalSplit = nativeSplit;
+       var typedArrayFromSpeciesAndList = function (instance, list) {
+         var C = speciesConstructor(instance, instance.constructor);
+         var index = 0;
+         var length = list.length;
+         var result = new (aTypedArrayConstructor$2(C))(length);
+         while (length > index) result[index] = list[index++];
+         return result;
+       };
 
-         return [
-           // `String.prototype.split` method
-           // https://tc39.github.io/ecma262/#sec-string.prototype.split
-           function split(separator, limit) {
-             var O = requireObjectCoercible(this);
-             var splitter = separator == undefined ? undefined : separator[SPLIT];
-             return splitter !== undefined
-               ? splitter.call(separator, O, limit)
-               : internalSplit.call(String(O), separator, limit);
-           },
-           // `RegExp.prototype[@@split]` method
-           // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
-           //
-           // NOTE: This cannot be properly polyfilled in engines that don't support
-           // the 'y' flag.
-           function (regexp, limit) {
-             var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== nativeSplit);
-             if (res.done) return res.value;
+       var $filter = arrayIteration.filter;
 
-             var rx = anObject(regexp);
-             var S = String(this);
-             var C = speciesConstructor(rx, RegExp);
 
-             var unicodeMatching = rx.unicode;
-             var flags = (rx.ignoreCase ? 'i' : '') +
-                         (rx.multiline ? 'm' : '') +
-                         (rx.unicode ? 'u' : '') +
-                         (SUPPORTS_Y ? 'y' : 'g');
+       var aTypedArray$4 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$4 = arrayBufferViewCore.exportTypedArrayMethod;
 
-             // ^(? + rx + ) is needed, in combination with some S slicing, to
-             // simulate the 'y' flag.
-             var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
-             var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
-             if (lim === 0) return [];
-             if (S.length === 0) return regexpExecAbstract(splitter, S) === null ? [S] : [];
-             var p = 0;
-             var q = 0;
-             var A = [];
-             while (q < S.length) {
-               splitter.lastIndex = SUPPORTS_Y ? q : 0;
-               var z = regexpExecAbstract(splitter, SUPPORTS_Y ? S : S.slice(q));
-               var e;
-               if (
-                 z === null ||
-                 (e = min$3(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
-               ) {
-                 q = advanceStringIndex(S, q, unicodeMatching);
-               } else {
-                 A.push(S.slice(p, q));
-                 if (A.length === lim) return A;
-                 for (var i = 1; i <= z.length - 1; i++) {
-                   A.push(z[i]);
-                   if (A.length === lim) return A;
-                 }
-                 q = p = e;
-               }
-             }
-             A.push(S.slice(p));
-             return A;
-           }
-         ];
-       }, !SUPPORTS_Y);
+       // `%TypedArray%.prototype.filter` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.filter
+       exportTypedArrayMethod$4('filter', function filter(callbackfn /* , thisArg */) {
+         var list = $filter(aTypedArray$4(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+         return typedArrayFromSpeciesAndList(this, list);
+       });
 
-       // a string of all valid unicode whitespaces
-       // eslint-disable-next-line max-len
-       var whitespaces = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
+       var $find = arrayIteration.find;
 
-       var whitespace = '[' + whitespaces + ']';
-       var ltrim = RegExp('^' + whitespace + whitespace + '*');
-       var rtrim = RegExp(whitespace + whitespace + '*$');
+       var aTypedArray$5 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$5 = arrayBufferViewCore.exportTypedArrayMethod;
 
-       // `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
-       var createMethod$3 = function (TYPE) {
-         return function ($this) {
-           var string = String(requireObjectCoercible($this));
-           if (TYPE & 1) string = string.replace(ltrim, '');
-           if (TYPE & 2) string = string.replace(rtrim, '');
-           return string;
-         };
-       };
+       // `%TypedArray%.prototype.find` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.find
+       exportTypedArrayMethod$5('find', function find(predicate /* , thisArg */) {
+         return $find(aTypedArray$5(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+       });
 
-       var stringTrim = {
-         // `String.prototype.{ trimLeft, trimStart }` methods
-         // https://tc39.github.io/ecma262/#sec-string.prototype.trimstart
-         start: createMethod$3(1),
-         // `String.prototype.{ trimRight, trimEnd }` methods
-         // https://tc39.github.io/ecma262/#sec-string.prototype.trimend
-         end: createMethod$3(2),
-         // `String.prototype.trim` method
-         // https://tc39.github.io/ecma262/#sec-string.prototype.trim
-         trim: createMethod$3(3)
-       };
+       var $findIndex = arrayIteration.findIndex;
 
-       var non = '\u200B\u0085\u180E';
+       var aTypedArray$6 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$6 = arrayBufferViewCore.exportTypedArrayMethod;
 
-       // check that a method works with the correct list
-       // of whitespaces and has a correct name
-       var stringTrimForced = function (METHOD_NAME) {
-         return fails(function () {
-           return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;
-         });
-       };
+       // `%TypedArray%.prototype.findIndex` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.findindex
+       exportTypedArrayMethod$6('findIndex', function findIndex(predicate /* , thisArg */) {
+         return $findIndex(aTypedArray$6(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+       });
 
-       var $trim = stringTrim.trim;
+       var $forEach$2 = arrayIteration.forEach;
 
+       var aTypedArray$7 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$7 = arrayBufferViewCore.exportTypedArrayMethod;
 
-       // `String.prototype.trim` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.trim
-       _export({ target: 'String', proto: true, forced: stringTrimForced('trim') }, {
-         trim: function trim() {
-           return $trim(this);
-         }
+       // `%TypedArray%.prototype.forEach` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.foreach
+       exportTypedArrayMethod$7('forEach', function forEach(callbackfn /* , thisArg */) {
+         $forEach$2(aTypedArray$7(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        });
 
-       /* eslint-disable no-new */
+       var $includes = arrayIncludes.includes;
 
+       var aTypedArray$8 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$8 = arrayBufferViewCore.exportTypedArrayMethod;
 
+       // `%TypedArray%.prototype.includes` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.includes
+       exportTypedArrayMethod$8('includes', function includes(searchElement /* , fromIndex */) {
+         return $includes(aTypedArray$8(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
+       });
 
-       var NATIVE_ARRAY_BUFFER_VIEWS$2 = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
+       var $indexOf$1 = arrayIncludes.indexOf;
 
-       var ArrayBuffer$3 = global_1.ArrayBuffer;
-       var Int8Array$2 = global_1.Int8Array;
+       var aTypedArray$9 = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$9 = arrayBufferViewCore.exportTypedArrayMethod;
 
-       var typedArrayConstructorsRequireWrappers = !NATIVE_ARRAY_BUFFER_VIEWS$2 || !fails(function () {
-         Int8Array$2(1);
-       }) || !fails(function () {
-         new Int8Array$2(-1);
-       }) || !checkCorrectnessOfIteration(function (iterable) {
-         new Int8Array$2();
-         new Int8Array$2(null);
-         new Int8Array$2(1.5);
-         new Int8Array$2(iterable);
-       }, true) || fails(function () {
-         // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill
-         return new Int8Array$2(new ArrayBuffer$3(2), 1, undefined).length !== 1;
+       // `%TypedArray%.prototype.indexOf` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.indexof
+       exportTypedArrayMethod$9('indexOf', function indexOf(searchElement /* , fromIndex */) {
+         return $indexOf$1(aTypedArray$9(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
        });
 
-       var toPositiveInteger = function (it) {
-         var result = toInteger(it);
-         if (result < 0) throw RangeError("The argument can't be less than 0");
-         return result;
-       };
+       var ITERATOR$6 = wellKnownSymbol('iterator');
+       var Uint8Array$1 = global_1.Uint8Array;
+       var arrayValues = es_array_iterator.values;
+       var arrayKeys = es_array_iterator.keys;
+       var arrayEntries = es_array_iterator.entries;
+       var aTypedArray$a = arrayBufferViewCore.aTypedArray;
+       var exportTypedArrayMethod$a = arrayBufferViewCore.exportTypedArrayMethod;
+       var nativeTypedArrayIterator = Uint8Array$1 && Uint8Array$1.prototype[ITERATOR$6];
 
-       var toOffset = function (it, BYTES) {
-         var offset = toPositiveInteger(it);
-         if (offset % BYTES) throw RangeError('Wrong offset');
-         return offset;
-       };
+       var CORRECT_ITER_NAME = !!nativeTypedArrayIterator
+         && (nativeTypedArrayIterator.name == 'values' || nativeTypedArrayIterator.name == undefined);
 
-       var aTypedArrayConstructor$1 = arrayBufferViewCore.aTypedArrayConstructor;
-
-       var typedArrayFrom = function from(source /* , mapfn, thisArg */) {
-         var O = toObject(source);
-         var argumentsLength = arguments.length;
-         var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
-         var mapping = mapfn !== undefined;
-         var iteratorMethod = getIteratorMethod(O);
-         var i, length, result, step, iterator, next;
-         if (iteratorMethod != undefined && !isArrayIteratorMethod(iteratorMethod)) {
-           iterator = iteratorMethod.call(O);
-           next = iterator.next;
-           O = [];
-           while (!(step = next.call(iterator)).done) {
-             O.push(step.value);
-           }
-         }
-         if (mapping && argumentsLength > 2) {
-           mapfn = functionBindContext(mapfn, arguments[2], 2);
-         }
-         length = toLength(O.length);
-         result = new (aTypedArrayConstructor$1(this))(length);
-         for (i = 0; length > i; i++) {
-           result[i] = mapping ? mapfn(O[i], i) : O[i];
-         }
-         return result;
-       };
-
-       // makes subclassing work correct for wrapped built-ins
-       var inheritIfRequired = function ($this, dummy, Wrapper) {
-         var NewTarget, NewTargetPrototype;
-         if (
-           // it can work only with native `setPrototypeOf`
-           objectSetPrototypeOf &&
-           // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
-           typeof (NewTarget = dummy.constructor) == 'function' &&
-           NewTarget !== Wrapper &&
-           isObject(NewTargetPrototype = NewTarget.prototype) &&
-           NewTargetPrototype !== Wrapper.prototype
-         ) objectSetPrototypeOf($this, NewTargetPrototype);
-         return $this;
-       };
-
-       var typedArrayConstructor = createCommonjsModule(function (module) {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-       var getOwnPropertyNames = objectGetOwnPropertyNames.f;
-
-       var forEach = arrayIteration.forEach;
-
-
-
-
-
-
-       var getInternalState = internalState.get;
-       var setInternalState = internalState.set;
-       var nativeDefineProperty = objectDefineProperty.f;
-       var nativeGetOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
-       var round = Math.round;
-       var RangeError = global_1.RangeError;
-       var ArrayBuffer = arrayBuffer.ArrayBuffer;
-       var DataView = arrayBuffer.DataView;
-       var NATIVE_ARRAY_BUFFER_VIEWS = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
-       var TYPED_ARRAY_TAG = arrayBufferViewCore.TYPED_ARRAY_TAG;
-       var TypedArray = arrayBufferViewCore.TypedArray;
-       var TypedArrayPrototype = arrayBufferViewCore.TypedArrayPrototype;
-       var aTypedArrayConstructor = arrayBufferViewCore.aTypedArrayConstructor;
-       var isTypedArray = arrayBufferViewCore.isTypedArray;
-       var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
-       var WRONG_LENGTH = 'Wrong length';
-
-       var fromList = function (C, list) {
-         var index = 0;
-         var length = list.length;
-         var result = new (aTypedArrayConstructor(C))(length);
-         while (length > index) result[index] = list[index++];
-         return result;
-       };
-
-       var addGetter = function (it, key) {
-         nativeDefineProperty(it, key, { get: function () {
-           return getInternalState(this)[key];
-         } });
-       };
-
-       var isArrayBuffer = function (it) {
-         var klass;
-         return it instanceof ArrayBuffer || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';
-       };
-
-       var isTypedArrayIndex = function (target, key) {
-         return isTypedArray(target)
-           && typeof key != 'symbol'
-           && key in target
-           && String(+key) == String(key);
-       };
-
-       var wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {
-         return isTypedArrayIndex(target, key = toPrimitive(key, true))
-           ? createPropertyDescriptor(2, target[key])
-           : nativeGetOwnPropertyDescriptor(target, key);
-       };
-
-       var wrappedDefineProperty = function defineProperty(target, key, descriptor) {
-         if (isTypedArrayIndex(target, key = toPrimitive(key, true))
-           && isObject(descriptor)
-           && has(descriptor, 'value')
-           && !has(descriptor, 'get')
-           && !has(descriptor, 'set')
-           // TODO: add validation descriptor w/o calling accessors
-           && !descriptor.configurable
-           && (!has(descriptor, 'writable') || descriptor.writable)
-           && (!has(descriptor, 'enumerable') || descriptor.enumerable)
-         ) {
-           target[key] = descriptor.value;
-           return target;
-         } return nativeDefineProperty(target, key, descriptor);
-       };
-
-       if (descriptors) {
-         if (!NATIVE_ARRAY_BUFFER_VIEWS) {
-           objectGetOwnPropertyDescriptor.f = wrappedGetOwnPropertyDescriptor;
-           objectDefineProperty.f = wrappedDefineProperty;
-           addGetter(TypedArrayPrototype, 'buffer');
-           addGetter(TypedArrayPrototype, 'byteOffset');
-           addGetter(TypedArrayPrototype, 'byteLength');
-           addGetter(TypedArrayPrototype, 'length');
-         }
-
-         _export({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
-           getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,
-           defineProperty: wrappedDefineProperty
-         });
-
-         module.exports = function (TYPE, wrapper, CLAMPED) {
-           var BYTES = TYPE.match(/\d+$/)[0] / 8;
-           var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';
-           var GETTER = 'get' + TYPE;
-           var SETTER = 'set' + TYPE;
-           var NativeTypedArrayConstructor = global_1[CONSTRUCTOR_NAME];
-           var TypedArrayConstructor = NativeTypedArrayConstructor;
-           var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;
-           var exported = {};
-
-           var getter = function (that, index) {
-             var data = getInternalState(that);
-             return data.view[GETTER](index * BYTES + data.byteOffset, true);
-           };
-
-           var setter = function (that, index, value) {
-             var data = getInternalState(that);
-             if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;
-             data.view[SETTER](index * BYTES + data.byteOffset, value, true);
-           };
-
-           var addElement = function (that, index) {
-             nativeDefineProperty(that, index, {
-               get: function () {
-                 return getter(this, index);
-               },
-               set: function (value) {
-                 return setter(this, index, value);
-               },
-               enumerable: true
-             });
-           };
-
-           if (!NATIVE_ARRAY_BUFFER_VIEWS) {
-             TypedArrayConstructor = wrapper(function (that, data, offset, $length) {
-               anInstance(that, TypedArrayConstructor, CONSTRUCTOR_NAME);
-               var index = 0;
-               var byteOffset = 0;
-               var buffer, byteLength, length;
-               if (!isObject(data)) {
-                 length = toIndex(data);
-                 byteLength = length * BYTES;
-                 buffer = new ArrayBuffer(byteLength);
-               } else if (isArrayBuffer(data)) {
-                 buffer = data;
-                 byteOffset = toOffset(offset, BYTES);
-                 var $len = data.byteLength;
-                 if ($length === undefined) {
-                   if ($len % BYTES) throw RangeError(WRONG_LENGTH);
-                   byteLength = $len - byteOffset;
-                   if (byteLength < 0) throw RangeError(WRONG_LENGTH);
-                 } else {
-                   byteLength = toLength($length) * BYTES;
-                   if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);
-                 }
-                 length = byteLength / BYTES;
-               } else if (isTypedArray(data)) {
-                 return fromList(TypedArrayConstructor, data);
-               } else {
-                 return typedArrayFrom.call(TypedArrayConstructor, data);
-               }
-               setInternalState(that, {
-                 buffer: buffer,
-                 byteOffset: byteOffset,
-                 byteLength: byteLength,
-                 length: length,
-                 view: new DataView(buffer)
-               });
-               while (index < length) addElement(that, index++);
-             });
-
-             if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
-             TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = objectCreate(TypedArrayPrototype);
-           } else if (typedArrayConstructorsRequireWrappers) {
-             TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {
-               anInstance(dummy, TypedArrayConstructor, CONSTRUCTOR_NAME);
-               return inheritIfRequired(function () {
-                 if (!isObject(data)) return new NativeTypedArrayConstructor(toIndex(data));
-                 if (isArrayBuffer(data)) return $length !== undefined
-                   ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)
-                   : typedArrayOffset !== undefined
-                     ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))
-                     : new NativeTypedArrayConstructor(data);
-                 if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);
-                 return typedArrayFrom.call(TypedArrayConstructor, data);
-               }(), dummy, TypedArrayConstructor);
-             });
-
-             if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
-             forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {
-               if (!(key in TypedArrayConstructor)) {
-                 createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);
-               }
-             });
-             TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;
-           }
-
-           if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {
-             createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);
-           }
-
-           if (TYPED_ARRAY_TAG) {
-             createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);
-           }
-
-           exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;
-
-           _export({
-             global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS
-           }, exported);
-
-           if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {
-             createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);
-           }
-
-           if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {
-             createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);
-           }
-
-           setSpecies(CONSTRUCTOR_NAME);
-         };
-       } else module.exports = function () { /* empty */ };
-       });
-
-       // `Uint8Array` constructor
-       // https://tc39.github.io/ecma262/#sec-typedarray-objects
-       typedArrayConstructor('Uint8', function (init) {
-         return function Uint8Array(data, byteOffset, length) {
-           return init(this, data, byteOffset, length);
-         };
-       });
-
-       var min$4 = Math.min;
-
-       // `Array.prototype.copyWithin` method implementation
-       // https://tc39.github.io/ecma262/#sec-array.prototype.copywithin
-       var arrayCopyWithin = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
-         var O = toObject(this);
-         var len = toLength(O.length);
-         var to = toAbsoluteIndex(target, len);
-         var from = toAbsoluteIndex(start, len);
-         var end = arguments.length > 2 ? arguments[2] : undefined;
-         var count = min$4((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
-         var inc = 1;
-         if (from < to && to < from + count) {
-           inc = -1;
-           from += count - 1;
-           to += count - 1;
-         }
-         while (count-- > 0) {
-           if (from in O) O[to] = O[from];
-           else delete O[to];
-           to += inc;
-           from += inc;
-         } return O;
-       };
-
-       var aTypedArray$1 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$1 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.copyWithin` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.copywithin
-       exportTypedArrayMethod$1('copyWithin', function copyWithin(target, start /* , end */) {
-         return arrayCopyWithin.call(aTypedArray$1(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
-       });
-
-       var $every = arrayIteration.every;
-
-       var aTypedArray$2 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$2 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.every` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.every
-       exportTypedArrayMethod$2('every', function every(callbackfn /* , thisArg */) {
-         return $every(aTypedArray$2(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var aTypedArray$3 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$3 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.fill` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.fill
-       // eslint-disable-next-line no-unused-vars
-       exportTypedArrayMethod$3('fill', function fill(value /* , start, end */) {
-         return arrayFill.apply(aTypedArray$3(this), arguments);
-       });
-
-       var $filter = arrayIteration.filter;
-
-
-       var aTypedArray$4 = arrayBufferViewCore.aTypedArray;
-       var aTypedArrayConstructor$2 = arrayBufferViewCore.aTypedArrayConstructor;
-       var exportTypedArrayMethod$4 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.filter` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.filter
-       exportTypedArrayMethod$4('filter', function filter(callbackfn /* , thisArg */) {
-         var list = $filter(aTypedArray$4(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-         var C = speciesConstructor(this, this.constructor);
-         var index = 0;
-         var length = list.length;
-         var result = new (aTypedArrayConstructor$2(C))(length);
-         while (length > index) result[index] = list[index++];
-         return result;
-       });
-
-       var $find = arrayIteration.find;
-
-       var aTypedArray$5 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$5 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.find` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.find
-       exportTypedArrayMethod$5('find', function find(predicate /* , thisArg */) {
-         return $find(aTypedArray$5(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var $findIndex = arrayIteration.findIndex;
-
-       var aTypedArray$6 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$6 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.findIndex` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.findindex
-       exportTypedArrayMethod$6('findIndex', function findIndex(predicate /* , thisArg */) {
-         return $findIndex(aTypedArray$6(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var $forEach$2 = arrayIteration.forEach;
-
-       var aTypedArray$7 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$7 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.forEach` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.foreach
-       exportTypedArrayMethod$7('forEach', function forEach(callbackfn /* , thisArg */) {
-         $forEach$2(aTypedArray$7(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var $includes = arrayIncludes.includes;
-
-       var aTypedArray$8 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$8 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.includes` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.includes
-       exportTypedArrayMethod$8('includes', function includes(searchElement /* , fromIndex */) {
-         return $includes(aTypedArray$8(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var $indexOf$1 = arrayIncludes.indexOf;
-
-       var aTypedArray$9 = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$9 = arrayBufferViewCore.exportTypedArrayMethod;
-
-       // `%TypedArray%.prototype.indexOf` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.indexof
-       exportTypedArrayMethod$9('indexOf', function indexOf(searchElement /* , fromIndex */) {
-         return $indexOf$1(aTypedArray$9(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
-       });
-
-       var ITERATOR$5 = wellKnownSymbol('iterator');
-       var Uint8Array$1 = global_1.Uint8Array;
-       var arrayValues = es_array_iterator.values;
-       var arrayKeys = es_array_iterator.keys;
-       var arrayEntries = es_array_iterator.entries;
-       var aTypedArray$a = arrayBufferViewCore.aTypedArray;
-       var exportTypedArrayMethod$a = arrayBufferViewCore.exportTypedArrayMethod;
-       var nativeTypedArrayIterator = Uint8Array$1 && Uint8Array$1.prototype[ITERATOR$5];
-
-       var CORRECT_ITER_NAME = !!nativeTypedArrayIterator
-         && (nativeTypedArrayIterator.name == 'values' || nativeTypedArrayIterator.name == undefined);
-
-       var typedArrayValues = function values() {
-         return arrayValues.call(aTypedArray$a(this));
-       };
+       var typedArrayValues = function values() {
+         return arrayValues.call(aTypedArray$a(this));
+       };
 
        // `%TypedArray%.prototype.entries` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.entries
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.entries
        exportTypedArrayMethod$a('entries', function entries() {
          return arrayEntries.call(aTypedArray$a(this));
        });
        // `%TypedArray%.prototype.keys` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.keys
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.keys
        exportTypedArrayMethod$a('keys', function keys() {
          return arrayKeys.call(aTypedArray$a(this));
        });
        // `%TypedArray%.prototype.values` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.values
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.values
        exportTypedArrayMethod$a('values', typedArrayValues, !CORRECT_ITER_NAME);
        // `%TypedArray%.prototype[@@iterator]` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype-@@iterator
-       exportTypedArrayMethod$a(ITERATOR$5, typedArrayValues, !CORRECT_ITER_NAME);
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype-@@iterator
+       exportTypedArrayMethod$a(ITERATOR$6, typedArrayValues, !CORRECT_ITER_NAME);
 
        var aTypedArray$b = arrayBufferViewCore.aTypedArray;
        var exportTypedArrayMethod$b = arrayBufferViewCore.exportTypedArrayMethod;
        var $join = [].join;
 
        // `%TypedArray%.prototype.join` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.join
-       // eslint-disable-next-line no-unused-vars
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.join
+       // eslint-disable-next-line no-unused-vars -- required for `.length`
        exportTypedArrayMethod$b('join', function join(separator) {
          return $join.apply(aTypedArray$b(this), arguments);
        });
 
-       var min$5 = Math.min;
+       var min$3 = Math.min;
        var nativeLastIndexOf = [].lastIndexOf;
        var NEGATIVE_ZERO$1 = !!nativeLastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
-       var STRICT_METHOD$3 = arrayMethodIsStrict('lastIndexOf');
-       // For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method
-       var USES_TO_LENGTH$4 = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
-       var FORCED$1 = NEGATIVE_ZERO$1 || !STRICT_METHOD$3 || !USES_TO_LENGTH$4;
+       var STRICT_METHOD$2 = arrayMethodIsStrict('lastIndexOf');
+       var FORCED$1 = NEGATIVE_ZERO$1 || !STRICT_METHOD$2;
 
        // `Array.prototype.lastIndexOf` method implementation
-       // https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
+       // https://tc39.es/ecma262/#sec-array.prototype.lastindexof
        var arrayLastIndexOf = FORCED$1 ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
          // convert -0 to +0
          if (NEGATIVE_ZERO$1) return nativeLastIndexOf.apply(this, arguments) || 0;
          var O = toIndexedObject(this);
          var length = toLength(O.length);
          var index = length - 1;
-         if (arguments.length > 1) index = min$5(index, toInteger(arguments[1]));
+         if (arguments.length > 1) index = min$3(index, toInteger(arguments[1]));
          if (index < 0) index = length + index;
          for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
          return -1;
        var exportTypedArrayMethod$c = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.lastIndexOf` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.lastindexof
-       // eslint-disable-next-line no-unused-vars
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.lastindexof
+       // eslint-disable-next-line no-unused-vars -- required for `.length`
        exportTypedArrayMethod$c('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {
          return arrayLastIndexOf.apply(aTypedArray$c(this), arguments);
        });
        var exportTypedArrayMethod$d = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.map` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.map
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.map
        exportTypedArrayMethod$d('map', function map(mapfn /* , thisArg */) {
          return $map$1(aTypedArray$d(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
            return new (aTypedArrayConstructor$3(speciesConstructor(O, O.constructor)))(length);
        });
 
        // `Array.prototype.{ reduce, reduceRight }` methods implementation
-       var createMethod$4 = function (IS_RIGHT) {
+       var createMethod$3 = function (IS_RIGHT) {
          return function (that, callbackfn, argumentsLength, memo) {
            aFunction$1(callbackfn);
            var O = toObject(that);
 
        var arrayReduce = {
          // `Array.prototype.reduce` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.reduce
-         left: createMethod$4(false),
+         // https://tc39.es/ecma262/#sec-array.prototype.reduce
+         left: createMethod$3(false),
          // `Array.prototype.reduceRight` method
-         // https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
-         right: createMethod$4(true)
+         // https://tc39.es/ecma262/#sec-array.prototype.reduceright
+         right: createMethod$3(true)
        };
 
        var $reduce = arrayReduce.left;
        var exportTypedArrayMethod$e = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.reduce` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduce
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduce
        exportTypedArrayMethod$e('reduce', function reduce(callbackfn /* , initialValue */) {
          return $reduce(aTypedArray$e(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
        });
        var exportTypedArrayMethod$f = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.reduceRicht` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduceright
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduceright
        exportTypedArrayMethod$f('reduceRight', function reduceRight(callbackfn /* , initialValue */) {
          return $reduceRight(aTypedArray$f(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
        });
 
        var aTypedArray$g = arrayBufferViewCore.aTypedArray;
        var exportTypedArrayMethod$g = arrayBufferViewCore.exportTypedArrayMethod;
-       var floor$3 = Math.floor;
+       var floor$2 = Math.floor;
 
        // `%TypedArray%.prototype.reverse` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reverse
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.reverse
        exportTypedArrayMethod$g('reverse', function reverse() {
          var that = this;
          var length = aTypedArray$g(that).length;
-         var middle = floor$3(length / 2);
+         var middle = floor$2(length / 2);
          var index = 0;
          var value;
          while (index < middle) {
        var exportTypedArrayMethod$h = arrayBufferViewCore.exportTypedArrayMethod;
 
        var FORCED$2 = fails(function () {
-         // eslint-disable-next-line no-undef
+         /* global Int8Array -- safe */
          new Int8Array(1).set({});
        });
 
        // `%TypedArray%.prototype.set` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.set
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.set
        exportTypedArrayMethod$h('set', function set(arrayLike /* , offset */) {
          aTypedArray$h(this);
          var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
        var $slice = [].slice;
 
        var FORCED$3 = fails(function () {
-         // eslint-disable-next-line no-undef
+         /* global Int8Array -- safe */
          new Int8Array(1).slice();
        });
 
        // `%TypedArray%.prototype.slice` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.slice
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice
        exportTypedArrayMethod$i('slice', function slice(start, end) {
          var list = $slice.call(aTypedArray$i(this), start, end);
          var C = speciesConstructor(this, this.constructor);
        var exportTypedArrayMethod$j = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.some` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.some
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.some
        exportTypedArrayMethod$j('some', function some(callbackfn /* , thisArg */) {
          return $some(aTypedArray$j(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        });
        var $sort = [].sort;
 
        // `%TypedArray%.prototype.sort` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.sort
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
        exportTypedArrayMethod$k('sort', function sort(comparefn) {
          return $sort.call(aTypedArray$k(this), comparefn);
        });
        var exportTypedArrayMethod$l = arrayBufferViewCore.exportTypedArrayMethod;
 
        // `%TypedArray%.prototype.subarray` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.subarray
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.subarray
        exportTypedArrayMethod$l('subarray', function subarray(begin, end) {
          var O = aTypedArray$l(this);
          var length = O.length;
        });
 
        // `%TypedArray%.prototype.toLocaleString` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tolocalestring
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.tolocalestring
        exportTypedArrayMethod$m('toLocaleString', function toLocaleString() {
          return $toLocaleString.apply(TO_LOCALE_STRING_BUG ? $slice$1.call(aTypedArray$m(this)) : aTypedArray$m(this), arguments);
        }, FORCED$4);
        var IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;
 
        // `%TypedArray%.prototype.toString` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tostring
+       // https://tc39.es/ecma262/#sec-%typedarray%.prototype.tostring
        exportTypedArrayMethod$n('toString', arrayToString, IS_NOT_ARRAY_METHOD);
 
-       // iterable DOM collections
-       // flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
-       var domIterables = {
-         CSSRuleList: 0,
-         CSSStyleDeclaration: 0,
-         CSSValueList: 0,
-         ClientRectList: 0,
-         DOMRectList: 0,
-         DOMStringList: 0,
-         DOMTokenList: 1,
-         DataTransferItemList: 0,
-         FileList: 0,
-         HTMLAllCollection: 0,
-         HTMLCollection: 0,
-         HTMLFormElement: 0,
-         HTMLSelectElement: 0,
-         MediaList: 0,
-         MimeTypeArray: 0,
-         NamedNodeMap: 0,
-         NodeList: 1,
-         PaintRequestList: 0,
-         Plugin: 0,
-         PluginArray: 0,
-         SVGLengthList: 0,
-         SVGNumberList: 0,
-         SVGPathSegList: 0,
-         SVGPointList: 0,
-         SVGStringList: 0,
-         SVGTransformList: 0,
-         SourceBufferList: 0,
-         StyleSheetList: 0,
-         TextTrackCueList: 0,
-         TextTrackList: 0,
-         TouchList: 0
-       };
+       var nativeJoin = [].join;
 
-       for (var COLLECTION_NAME in domIterables) {
-         var Collection = global_1[COLLECTION_NAME];
-         var CollectionPrototype = Collection && Collection.prototype;
-         // some Chrome versions have non-configurable methods on DOMTokenList
-         if (CollectionPrototype && CollectionPrototype.forEach !== arrayForEach) try {
-           createNonEnumerableProperty(CollectionPrototype, 'forEach', arrayForEach);
-         } catch (error) {
-           CollectionPrototype.forEach = arrayForEach;
+       var ES3_STRINGS = indexedObject != Object;
+       var STRICT_METHOD$3 = arrayMethodIsStrict('join', ',');
+
+       // `Array.prototype.join` method
+       // https://tc39.es/ecma262/#sec-array.prototype.join
+       _export({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD$3 }, {
+         join: function join(separator) {
+           return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);
          }
-       }
+       });
 
-       var ITERATOR$6 = wellKnownSymbol('iterator');
-       var TO_STRING_TAG$4 = wellKnownSymbol('toStringTag');
-       var ArrayValues = es_array_iterator.values;
+       var createProperty = function (object, key, value) {
+         var propertyKey = toPrimitive(key);
+         if (propertyKey in object) objectDefineProperty.f(object, propertyKey, createPropertyDescriptor(0, value));
+         else object[propertyKey] = value;
+       };
 
-       for (var COLLECTION_NAME$1 in domIterables) {
-         var Collection$1 = global_1[COLLECTION_NAME$1];
-         var CollectionPrototype$1 = Collection$1 && Collection$1.prototype;
-         if (CollectionPrototype$1) {
-           // some Chrome versions have non-configurable methods on DOMTokenList
-           if (CollectionPrototype$1[ITERATOR$6] !== ArrayValues) try {
-             createNonEnumerableProperty(CollectionPrototype$1, ITERATOR$6, ArrayValues);
-           } catch (error) {
-             CollectionPrototype$1[ITERATOR$6] = ArrayValues;
-           }
-           if (!CollectionPrototype$1[TO_STRING_TAG$4]) {
-             createNonEnumerableProperty(CollectionPrototype$1, TO_STRING_TAG$4, COLLECTION_NAME$1);
-           }
-           if (domIterables[COLLECTION_NAME$1]) for (var METHOD_NAME in es_array_iterator) {
-             // some Chrome versions have non-configurable methods on DOMTokenList
-             if (CollectionPrototype$1[METHOD_NAME] !== es_array_iterator[METHOD_NAME]) try {
-               createNonEnumerableProperty(CollectionPrototype$1, METHOD_NAME, es_array_iterator[METHOD_NAME]);
-             } catch (error) {
-               CollectionPrototype$1[METHOD_NAME] = es_array_iterator[METHOD_NAME];
+       var HAS_SPECIES_SUPPORT$1 = arrayMethodHasSpeciesSupport('slice');
+
+       var SPECIES$5 = wellKnownSymbol('species');
+       var nativeSlice = [].slice;
+       var max$1 = Math.max;
+
+       // `Array.prototype.slice` method
+       // https://tc39.es/ecma262/#sec-array.prototype.slice
+       // fallback for not array-like ES3 strings and DOM objects
+       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$1 }, {
+         slice: function slice(start, end) {
+           var O = toIndexedObject(this);
+           var length = toLength(O.length);
+           var k = toAbsoluteIndex(start, length);
+           var fin = toAbsoluteIndex(end === undefined ? length : end, length);
+           // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
+           var Constructor, result, n;
+           if (isArray(O)) {
+             Constructor = O.constructor;
+             // cross-realm fallback
+             if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {
+               Constructor = undefined;
+             } else if (isObject(Constructor)) {
+               Constructor = Constructor[SPECIES$5];
+               if (Constructor === null) Constructor = undefined;
+             }
+             if (Constructor === Array || Constructor === undefined) {
+               return nativeSlice.call(O, k, fin);
              }
            }
+           result = new (Constructor === undefined ? Array : Constructor)(max$1(fin - k, 0));
+           for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
+           result.length = n;
+           return result;
          }
-       }
+       });
 
-       var slice = [].slice;
-       var MSIE = /MSIE .\./.test(engineUserAgent); // <- dirty ie9- check
-
-       var wrap$1 = function (scheduler) {
-         return function (handler, timeout /* , ...arguments */) {
-           var boundArgs = arguments.length > 2;
-           var args = boundArgs ? slice.call(arguments, 2) : undefined;
-           return scheduler(boundArgs ? function () {
-             // eslint-disable-next-line no-new-func
-             (typeof handler == 'function' ? handler : Function(handler)).apply(this, args);
-           } : handler, timeout);
-         };
-       };
-
-       // ie9- setTimeout & setInterval additional parameters fix
-       // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
-       _export({ global: true, bind: true, forced: MSIE }, {
-         // `setTimeout` method
-         // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
-         setTimeout: wrap$1(global_1.setTimeout),
-         // `setInterval` method
-         // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
-         setInterval: wrap$1(global_1.setInterval)
-       });
-
-       var ITERATOR$7 = wellKnownSymbol('iterator');
+       var ITERATOR$7 = wellKnownSymbol('iterator');
 
        var nativeUrl = !fails(function () {
          var url = new URL('b?a=1&b=2&c=3', 'http://a');
        });
 
        var nativeAssign = Object.assign;
-       var defineProperty$7 = Object.defineProperty;
+       var defineProperty$5 = Object.defineProperty;
 
        // `Object.assign` method
-       // https://tc39.github.io/ecma262/#sec-object.assign
+       // https://tc39.es/ecma262/#sec-object.assign
        var objectAssign = !nativeAssign || fails(function () {
          // should have correct order of operations (Edge bug)
-         if (descriptors && nativeAssign({ b: 1 }, nativeAssign(defineProperty$7({}, 'a', {
+         if (descriptors && nativeAssign({ b: 1 }, nativeAssign(defineProperty$5({}, 'a', {
            enumerable: true,
            get: function () {
-             defineProperty$7(this, 'b', {
+             defineProperty$5(this, 'b', {
                value: 3,
                enumerable: false
              });
          // should work with symbols and should have deterministic property order (V8 bug)
          var A = {};
          var B = {};
-         // eslint-disable-next-line no-undef
+         /* global Symbol -- required for testing */
          var symbol = Symbol();
          var alphabet = 'abcdefghijklmnopqrst';
          A[symbol] = 7;
          alphabet.split('').forEach(function (chr) { B[chr] = chr; });
          return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;
-       }) ? function assign(target, source) { // eslint-disable-line no-unused-vars
+       }) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
          var T = toObject(target);
          var argumentsLength = arguments.length;
          var index = 1;
        };
 
        // `Array.from` method implementation
-       // https://tc39.github.io/ecma262/#sec-array.from
+       // https://tc39.es/ecma262/#sec-array.from
        var arrayFrom = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
          var O = toObject(arrayLike);
          var C = typeof this == 'function' ? this : Array;
        var regexSeparators = /[.\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
        var OVERFLOW_ERROR = 'Overflow: input needs wider integers to process';
        var baseMinusTMin = base - tMin;
-       var floor$4 = Math.floor;
+       var floor$3 = Math.floor;
        var stringFromCharCode = String.fromCharCode;
 
        /**
         */
        var adapt = function (delta, numPoints, firstTime) {
          var k = 0;
-         delta = firstTime ? floor$4(delta / damp) : delta >> 1;
-         delta += floor$4(delta / numPoints);
+         delta = firstTime ? floor$3(delta / damp) : delta >> 1;
+         delta += floor$3(delta / numPoints);
          for (; delta > baseMinusTMin * tMax >> 1; k += base) {
-           delta = floor$4(delta / baseMinusTMin);
+           delta = floor$3(delta / baseMinusTMin);
          }
-         return floor$4(k + (baseMinusTMin + 1) * delta / (delta + skew));
+         return floor$3(k + (baseMinusTMin + 1) * delta / (delta + skew));
        };
 
        /**
         * Converts a string of Unicode symbols (e.g. a domain name label) to a
         * Punycode string of ASCII-only symbols.
         */
-       // eslint-disable-next-line  max-statements
+       // eslint-disable-next-line max-statements -- TODO
        var encode = function (input) {
          var output = [];
 
 
            // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>, but guard against overflow.
            var handledCPCountPlusOne = handledCPCount + 1;
-           if (m - n > floor$4((maxInt - delta) / handledCPCountPlusOne)) {
+           if (m - n > floor$3((maxInt - delta) / handledCPCountPlusOne)) {
              throw RangeError(OVERFLOW_ERROR);
            }
 
                  var qMinusT = q - t;
                  var baseMinusT = base - t;
                  output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT)));
-                 q = floor$4(qMinusT / baseMinusT);
+                 q = floor$3(qMinusT / baseMinusT);
                }
 
                output.push(stringFromCharCode(digitToBasic(q)));
        var getInternalSearchParamsState = web_urlSearchParams.getState;
        var setInternalState$6 = internalState.set;
        var getInternalURLState = internalState.getterFor('URL');
-       var floor$5 = Math.floor;
+       var floor$4 = Math.floor;
        var pow$1 = Math.pow;
 
        var INVALID_AUTHORITY = 'Invalid authority';
        var OCT = /^[0-7]+$/;
        var DEC = /^\d+$/;
        var HEX = /^[\dA-Fa-f]+$/;
-       // eslint-disable-next-line no-control-regex
-       var FORBIDDEN_HOST_CODE_POINT = /[\u0000\u0009\u000A\u000D #%/:?@[\\]]/;
-       // eslint-disable-next-line no-control-regex
-       var FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT = /[\u0000\u0009\u000A\u000D #/:?@[\\]]/;
-       // eslint-disable-next-line no-control-regex
+       /* eslint-disable no-control-regex -- safe */
+       var FORBIDDEN_HOST_CODE_POINT = /[\u0000\t\u000A\u000D #%/:?@[\\]]/;
+       var FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT = /[\u0000\t\u000A\u000D #/:?@[\\]]/;
        var LEADING_AND_TRAILING_C0_CONTROL_OR_SPACE = /^[\u0000-\u001F ]+|[\u0000-\u001F ]+$/g;
-       // eslint-disable-next-line no-control-regex
-       var TAB_AND_NEW_LINE = /[\u0009\u000A\u000D]/g;
+       var TAB_AND_NEW_LINE = /[\t\u000A\u000D]/g;
+       /* eslint-enable no-control-regex -- safe */
        var EOF;
 
        var parseHost = function (url, input) {
          return ipv4;
        };
 
-       // eslint-disable-next-line max-statements
+       // eslint-disable-next-line max-statements -- TODO
        var parseIPv6 = function (input) {
          var address = [0, 0, 0, 0, 0, 0, 0, 0];
          var pieceIndex = 0;
            result = [];
            for (index = 0; index < 4; index++) {
              result.unshift(host % 256);
-             host = floor$5(host / 256);
+             host = floor$4(host / 256);
            } return result.join('.');
          // ipv6
          } else if (typeof host == 'object') {
        var QUERY = {};
        var FRAGMENT = {};
 
-       // eslint-disable-next-line max-statements
+       // eslint-disable-next-line max-statements -- TODO
        var parseURL = function (url, input, stateOverride, base) {
          var state = stateOverride || SCHEME_START;
          var pointer = 0;
          var nativeRevokeObjectURL = NativeURL.revokeObjectURL;
          // `URL.createObjectURL` method
          // https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
-         // eslint-disable-next-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
          if (nativeCreateObjectURL) redefine(URLConstructor, 'createObjectURL', function createObjectURL(blob) {
            return nativeCreateObjectURL.apply(NativeURL, arguments);
          });
          // `URL.revokeObjectURL` method
          // https://developer.mozilla.org/en-US/docs/Web/API/URL/revokeObjectURL
-         // eslint-disable-next-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
          if (nativeRevokeObjectURL) redefine(URLConstructor, 'revokeObjectURL', function revokeObjectURL(url) {
            return nativeRevokeObjectURL.apply(NativeURL, arguments);
          });
          URL: URLConstructor
        });
 
-       function _typeof(obj) {
-         "@babel/helpers - typeof";
-
-         if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
-           _typeof = function (obj) {
-             return typeof obj;
-           };
-         } else {
-           _typeof = function (obj) {
-             return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-           };
-         }
+       // `RegExp.prototype.flags` getter implementation
+       // https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
+       var regexpFlags = function () {
+         var that = anObject(this);
+         var result = '';
+         if (that.global) result += 'g';
+         if (that.ignoreCase) result += 'i';
+         if (that.multiline) result += 'm';
+         if (that.dotAll) result += 's';
+         if (that.unicode) result += 'u';
+         if (that.sticky) result += 'y';
+         return result;
+       };
 
-         return _typeof(obj);
-       }
+       var TO_STRING$1 = 'toString';
+       var RegExpPrototype = RegExp.prototype;
+       var nativeToString = RegExpPrototype[TO_STRING$1];
 
-       function _classCallCheck(instance, Constructor) {
-         if (!(instance instanceof Constructor)) {
-           throw new TypeError("Cannot call a class as a function");
-         }
-       }
+       var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
+       // FF44- RegExp#toString has a wrong name
+       var INCORRECT_NAME = nativeToString.name != TO_STRING$1;
 
-       function _defineProperties(target, props) {
-         for (var i = 0; i < props.length; i++) {
-           var descriptor = props[i];
-           descriptor.enumerable = descriptor.enumerable || false;
-           descriptor.configurable = true;
-           if ("value" in descriptor) descriptor.writable = true;
-           Object.defineProperty(target, descriptor.key, descriptor);
-         }
+       // `RegExp.prototype.toString` method
+       // https://tc39.es/ecma262/#sec-regexp.prototype.tostring
+       if (NOT_GENERIC || INCORRECT_NAME) {
+         redefine(RegExp.prototype, TO_STRING$1, function toString() {
+           var R = anObject(this);
+           var p = String(R.source);
+           var rf = R.flags;
+           var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? regexpFlags.call(R) : rf);
+           return '/' + p + '/' + f;
+         }, { unsafe: true });
        }
 
-       function _createClass(Constructor, protoProps, staticProps) {
-         if (protoProps) _defineProperties(Constructor.prototype, protoProps);
-         if (staticProps) _defineProperties(Constructor, staticProps);
-         return Constructor;
+       // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError,
+       // so we use an intermediate function.
+       function RE(s, f) {
+         return RegExp(s, f);
        }
 
-       function _defineProperty(obj, key, value) {
-         if (key in obj) {
-           Object.defineProperty(obj, key, {
-             value: value,
-             enumerable: true,
-             configurable: true,
-             writable: true
-           });
-         } else {
-           obj[key] = value;
-         }
+       var UNSUPPORTED_Y = fails(function () {
+         // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
+         var re = RE('a', 'y');
+         re.lastIndex = 2;
+         return re.exec('abcd') != null;
+       });
 
-         return obj;
-       }
+       var BROKEN_CARET = fails(function () {
+         // https://bugzilla.mozilla.org/show_bug.cgi?id=773687
+         var re = RE('^r', 'gy');
+         re.lastIndex = 2;
+         return re.exec('str') != null;
+       });
 
-       function _slicedToArray(arr, i) {
-         return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
-       }
+       var regexpStickyHelpers = {
+               UNSUPPORTED_Y: UNSUPPORTED_Y,
+               BROKEN_CARET: BROKEN_CARET
+       };
 
-       function _toConsumableArray(arr) {
-         return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
-       }
+       var nativeExec = RegExp.prototype.exec;
+       // This always refers to the native implementation, because the
+       // String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
+       // which loads this file before patching the method.
+       var nativeReplace = String.prototype.replace;
 
-       function _arrayWithoutHoles(arr) {
-         if (Array.isArray(arr)) return _arrayLikeToArray(arr);
-       }
+       var patchedExec = nativeExec;
 
-       function _arrayWithHoles(arr) {
-         if (Array.isArray(arr)) return arr;
-       }
+       var UPDATES_LAST_INDEX_WRONG = (function () {
+         var re1 = /a/;
+         var re2 = /b*/g;
+         nativeExec.call(re1, 'a');
+         nativeExec.call(re2, 'a');
+         return re1.lastIndex !== 0 || re2.lastIndex !== 0;
+       })();
 
-       function _iterableToArray(iter) {
-         if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
-       }
+       var UNSUPPORTED_Y$1 = regexpStickyHelpers.UNSUPPORTED_Y || regexpStickyHelpers.BROKEN_CARET;
 
-       function _iterableToArrayLimit(arr, i) {
-         if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
-         var _arr = [];
-         var _n = true;
-         var _d = false;
-         var _e = undefined;
+       // nonparticipating capturing group, copied from es5-shim's String#split patch.
+       // eslint-disable-next-line regexp/no-assertion-capturing-group, regexp/no-empty-group -- required for testing
+       var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
 
-         try {
-           for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
-             _arr.push(_s.value);
+       var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y$1;
 
-             if (i && _arr.length === i) break;
-           }
-         } catch (err) {
-           _d = true;
-           _e = err;
-         } finally {
-           try {
-             if (!_n && _i["return"] != null) _i["return"]();
-           } finally {
-             if (_d) throw _e;
-           }
-         }
+       if (PATCH) {
+         patchedExec = function exec(str) {
+           var re = this;
+           var lastIndex, reCopy, match, i;
+           var sticky = UNSUPPORTED_Y$1 && re.sticky;
+           var flags = regexpFlags.call(re);
+           var source = re.source;
+           var charsAdded = 0;
+           var strCopy = str;
 
-         return _arr;
-       }
+           if (sticky) {
+             flags = flags.replace('y', '');
+             if (flags.indexOf('g') === -1) {
+               flags += 'g';
+             }
 
-       function _unsupportedIterableToArray(o, minLen) {
-         if (!o) return;
-         if (typeof o === "string") return _arrayLikeToArray(o, minLen);
-         var n = Object.prototype.toString.call(o).slice(8, -1);
-         if (n === "Object" && o.constructor) n = o.constructor.name;
-         if (n === "Map" || n === "Set") return Array.from(o);
-         if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
-       }
+             strCopy = String(str).slice(re.lastIndex);
+             // Support anchored sticky behavior.
+             if (re.lastIndex > 0 && (!re.multiline || re.multiline && str[re.lastIndex - 1] !== '\n')) {
+               source = '(?: ' + source + ')';
+               strCopy = ' ' + strCopy;
+               charsAdded++;
+             }
+             // ^(? + rx + ) is needed, in combination with some str slicing, to
+             // simulate the 'y' flag.
+             reCopy = new RegExp('^(?:' + source + ')', flags);
+           }
 
-       function _arrayLikeToArray(arr, len) {
-         if (len == null || len > arr.length) len = arr.length;
+           if (NPCG_INCLUDED) {
+             reCopy = new RegExp('^' + source + '$(?!\\s)', flags);
+           }
+           if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;
 
-         for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+           match = nativeExec.call(sticky ? reCopy : re, strCopy);
 
-         return arr2;
-       }
+           if (sticky) {
+             if (match) {
+               match.input = match.input.slice(charsAdded);
+               match[0] = match[0].slice(charsAdded);
+               match.index = re.lastIndex;
+               re.lastIndex += match[0].length;
+             } else re.lastIndex = 0;
+           } else if (UPDATES_LAST_INDEX_WRONG && match) {
+             re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
+           }
+           if (NPCG_INCLUDED && match && match.length > 1) {
+             // Fix browsers whose `exec` methods don't consistently return `undefined`
+             // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
+             nativeReplace.call(match[0], reCopy, function () {
+               for (i = 1; i < arguments.length - 2; i++) {
+                 if (arguments[i] === undefined) match[i] = undefined;
+               }
+             });
+           }
 
-       function _nonIterableSpread() {
-         throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+           return match;
+         };
        }
 
-       function _nonIterableRest() {
-         throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
-       }
+       var regexpExec = patchedExec;
 
-       function _createForOfIteratorHelper(o, allowArrayLike) {
-         var it;
+       // `RegExp.prototype.exec` method
+       // https://tc39.es/ecma262/#sec-regexp.prototype.exec
+       _export({ target: 'RegExp', proto: true, forced: /./.exec !== regexpExec }, {
+         exec: regexpExec
+       });
 
-         if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
-           if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
-             if (it) o = it;
-             var i = 0;
+       // TODO: Remove from `core-js@4` since it's moved to entry points
 
-             var F = function () {};
 
-             return {
-               s: F,
-               n: function () {
-                 if (i >= o.length) return {
-                   done: true
-                 };
-                 return {
-                   done: false,
-                   value: o[i++]
-                 };
-               },
-               e: function (e) {
-                 throw e;
-               },
-               f: F
-             };
-           }
 
-           throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
-         }
 
-         var normalCompletion = true,
-             didErr = false,
-             err;
-         return {
-           s: function () {
-             it = o[Symbol.iterator]();
-           },
-           n: function () {
-             var step = it.next();
-             normalCompletion = step.done;
-             return step;
-           },
-           e: function (e) {
-             didErr = true;
-             err = e;
-           },
-           f: function () {
-             try {
-               if (!normalCompletion && it.return != null) it.return();
-             } finally {
-               if (didErr) throw err;
-             }
-           }
-         };
-       }
 
-       var global$1 = typeof globalThis !== 'undefined' && globalThis || typeof self !== 'undefined' && self || typeof global$1 !== 'undefined' && global$1;
-       var support = {
-         searchParams: 'URLSearchParams' in global$1,
-         iterable: 'Symbol' in global$1 && 'iterator' in Symbol,
-         blob: 'FileReader' in global$1 && 'Blob' in global$1 && function () {
-           try {
-             new Blob();
-             return true;
-           } catch (e) {
-             return false;
-           }
-         }(),
-         formData: 'FormData' in global$1,
-         arrayBuffer: 'ArrayBuffer' in global$1
-       };
 
-       function isDataView(obj) {
-         return obj && DataView.prototype.isPrototypeOf(obj);
-       }
 
-       if (support.arrayBuffer) {
-         var viewClasses = ['[object Int8Array]', '[object Uint8Array]', '[object Uint8ClampedArray]', '[object Int16Array]', '[object Uint16Array]', '[object Int32Array]', '[object Uint32Array]', '[object Float32Array]', '[object Float64Array]'];
+       var SPECIES$6 = wellKnownSymbol('species');
 
-         var isArrayBufferView = ArrayBuffer.isView || function (obj) {
-           return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1;
+       var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
+         // #replace needs built-in support for named groups.
+         // #match works fine because it just return the exec results, even if it has
+         // a "grops" property.
+         var re = /./;
+         re.exec = function () {
+           var result = [];
+           result.groups = { a: '7' };
+           return result;
          };
-       }
+         return ''.replace(re, '$<a>') !== '7';
+       });
 
-       function normalizeName(name) {
-         if (typeof name !== 'string') {
-           name = String(name);
-         }
+       // IE <= 11 replaces $0 with the whole match, as if it was $&
+       // https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
+       var REPLACE_KEEPS_$0 = (function () {
+         return 'a'.replace(/./, '$0') === '$0';
+       })();
 
-         if (/[^a-z0-9\-#$%&'*+.^_`|~!]/i.test(name) || name === '') {
-           throw new TypeError('Invalid character in header field name');
+       var REPLACE = wellKnownSymbol('replace');
+       // Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
+       var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
+         if (/./[REPLACE]) {
+           return /./[REPLACE]('a', '$0') === '';
          }
+         return false;
+       })();
 
-         return name.toLowerCase();
-       }
+       // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
+       // Weex JS has frozen built-in prototypes, so use try / catch wrapper
+       var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
+         // eslint-disable-next-line regexp/no-empty-group -- required for testing
+         var re = /(?:)/;
+         var originalExec = re.exec;
+         re.exec = function () { return originalExec.apply(this, arguments); };
+         var result = 'ab'.split(re);
+         return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
+       });
 
-       function normalizeValue(value) {
-         if (typeof value !== 'string') {
-           value = String(value);
-         }
+       var fixRegexpWellKnownSymbolLogic = function (KEY, length, exec, sham) {
+         var SYMBOL = wellKnownSymbol(KEY);
 
-         return value;
-       } // Build a destructive iterator for the value list
+         var DELEGATES_TO_SYMBOL = !fails(function () {
+           // String methods call symbol-named RegEp methods
+           var O = {};
+           O[SYMBOL] = function () { return 7; };
+           return ''[KEY](O) != 7;
+         });
 
+         var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
+           // Symbol-named RegExp methods call .exec
+           var execCalled = false;
+           var re = /a/;
 
-       function iteratorFor(items) {
-         var iterator = {
-           next: function next() {
-             var value = items.shift();
-             return {
-               done: value === undefined,
-               value: value
-             };
+           if (KEY === 'split') {
+             // We can't use real regex here since it causes deoptimization
+             // and serious performance degradation in V8
+             // https://github.com/zloirock/core-js/issues/306
+             re = {};
+             // RegExp[@@split] doesn't call the regex's exec method, but first creates
+             // a new one. We need to return the patched regex when creating the new one.
+             re.constructor = {};
+             re.constructor[SPECIES$6] = function () { return re; };
+             re.flags = '';
+             re[SYMBOL] = /./[SYMBOL];
            }
-         };
 
-         if (support.iterable) {
-           iterator[Symbol.iterator] = function () {
-             return iterator;
-           };
-         }
+           re.exec = function () { execCalled = true; return null; };
 
-         return iterator;
-       }
+           re[SYMBOL]('');
+           return !execCalled;
+         });
 
-       function Headers$1(headers) {
-         this.map = {};
+         if (
+           !DELEGATES_TO_SYMBOL ||
+           !DELEGATES_TO_EXEC ||
+           (KEY === 'replace' && !(
+             REPLACE_SUPPORTS_NAMED_GROUPS &&
+             REPLACE_KEEPS_$0 &&
+             !REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
+           )) ||
+           (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
+         ) {
+           var nativeRegExpMethod = /./[SYMBOL];
+           var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
+             if (regexp.exec === regexpExec) {
+               if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
+                 // The native String method already delegates to @@method (this
+                 // polyfilled function), leasing to infinite recursion.
+                 // We avoid it by directly calling the native @@method method.
+                 return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
+               }
+               return { done: true, value: nativeMethod.call(str, regexp, arg2) };
+             }
+             return { done: false };
+           }, {
+             REPLACE_KEEPS_$0: REPLACE_KEEPS_$0,
+             REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE: REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE
+           });
+           var stringMethod = methods[0];
+           var regexMethod = methods[1];
 
-         if (headers instanceof Headers$1) {
-           headers.forEach(function (value, name) {
-             this.append(name, value);
-           }, this);
-         } else if (Array.isArray(headers)) {
-           headers.forEach(function (header) {
-             this.append(header[0], header[1]);
-           }, this);
-         } else if (headers) {
-           Object.getOwnPropertyNames(headers).forEach(function (name) {
-             this.append(name, headers[name]);
-           }, this);
+           redefine(String.prototype, KEY, stringMethod);
+           redefine(RegExp.prototype, SYMBOL, length == 2
+             // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
+             // 21.2.5.11 RegExp.prototype[@@split](string, limit)
+             ? function (string, arg) { return regexMethod.call(string, this, arg); }
+             // 21.2.5.6 RegExp.prototype[@@match](string)
+             // 21.2.5.9 RegExp.prototype[@@search](string)
+             : function (string) { return regexMethod.call(string, this); }
+           );
          }
-       }
-
-       Headers$1.prototype.append = function (name, value) {
-         name = normalizeName(name);
-         value = normalizeValue(value);
-         var oldValue = this.map[name];
-         this.map[name] = oldValue ? oldValue + ', ' + value : value;
-       };
 
-       Headers$1.prototype['delete'] = function (name) {
-         delete this.map[normalizeName(name)];
+         if (sham) createNonEnumerableProperty(RegExp.prototype[SYMBOL], 'sham', true);
        };
 
-       Headers$1.prototype.get = function (name) {
-         name = normalizeName(name);
-         return this.has(name) ? this.map[name] : null;
-       };
+       var charAt$1 = stringMultibyte.charAt;
 
-       Headers$1.prototype.has = function (name) {
-         return this.map.hasOwnProperty(normalizeName(name));
+       // `AdvanceStringIndex` abstract operation
+       // https://tc39.es/ecma262/#sec-advancestringindex
+       var advanceStringIndex = function (S, index, unicode) {
+         return index + (unicode ? charAt$1(S, index).length : 1);
        };
 
-       Headers$1.prototype.set = function (name, value) {
-         this.map[normalizeName(name)] = normalizeValue(value);
+       var floor$5 = Math.floor;
+       var replace$1 = ''.replace;
+       var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d{1,2}|<[^>]*>)/g;
+       var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d{1,2})/g;
+
+       // https://tc39.es/ecma262/#sec-getsubstitution
+       var getSubstitution = function (matched, str, position, captures, namedCaptures, replacement) {
+         var tailPos = position + matched.length;
+         var m = captures.length;
+         var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
+         if (namedCaptures !== undefined) {
+           namedCaptures = toObject(namedCaptures);
+           symbols = SUBSTITUTION_SYMBOLS;
+         }
+         return replace$1.call(replacement, symbols, function (match, ch) {
+           var capture;
+           switch (ch.charAt(0)) {
+             case '$': return '$';
+             case '&': return matched;
+             case '`': return str.slice(0, position);
+             case "'": return str.slice(tailPos);
+             case '<':
+               capture = namedCaptures[ch.slice(1, -1)];
+               break;
+             default: // \d\d?
+               var n = +ch;
+               if (n === 0) return match;
+               if (n > m) {
+                 var f = floor$5(n / 10);
+                 if (f === 0) return match;
+                 if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
+                 return match;
+               }
+               capture = captures[n - 1];
+           }
+           return capture === undefined ? '' : capture;
+         });
        };
 
-       Headers$1.prototype.forEach = function (callback, thisArg) {
-         for (var name in this.map) {
-           if (this.map.hasOwnProperty(name)) {
-             callback.call(thisArg, this.map[name], name, this);
+       // `RegExpExec` abstract operation
+       // https://tc39.es/ecma262/#sec-regexpexec
+       var regexpExecAbstract = function (R, S) {
+         var exec = R.exec;
+         if (typeof exec === 'function') {
+           var result = exec.call(R, S);
+           if (typeof result !== 'object') {
+             throw TypeError('RegExp exec method returned something other than an Object or null');
            }
+           return result;
+         }
+
+         if (classofRaw(R) !== 'RegExp') {
+           throw TypeError('RegExp#exec called on incompatible receiver');
          }
+
+         return regexpExec.call(R, S);
        };
 
-       Headers$1.prototype.keys = function () {
-         var items = [];
-         this.forEach(function (value, name) {
-           items.push(name);
+       var max$2 = Math.max;
+       var min$4 = Math.min;
+
+       var maybeToString = function (it) {
+         return it === undefined ? it : String(it);
+       };
+
+       // @@replace logic
+       fixRegexpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, maybeCallNative, reason) {
+         var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = reason.REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE;
+         var REPLACE_KEEPS_$0 = reason.REPLACE_KEEPS_$0;
+         var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
+
+         return [
+           // `String.prototype.replace` method
+           // https://tc39.es/ecma262/#sec-string.prototype.replace
+           function replace(searchValue, replaceValue) {
+             var O = requireObjectCoercible(this);
+             var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
+             return replacer !== undefined
+               ? replacer.call(searchValue, O, replaceValue)
+               : nativeReplace.call(String(O), searchValue, replaceValue);
+           },
+           // `RegExp.prototype[@@replace]` method
+           // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
+           function (regexp, replaceValue) {
+             if (
+               (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||
+               (typeof replaceValue === 'string' && replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1)
+             ) {
+               var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);
+               if (res.done) return res.value;
+             }
+
+             var rx = anObject(regexp);
+             var S = String(this);
+
+             var functionalReplace = typeof replaceValue === 'function';
+             if (!functionalReplace) replaceValue = String(replaceValue);
+
+             var global = rx.global;
+             if (global) {
+               var fullUnicode = rx.unicode;
+               rx.lastIndex = 0;
+             }
+             var results = [];
+             while (true) {
+               var result = regexpExecAbstract(rx, S);
+               if (result === null) break;
+
+               results.push(result);
+               if (!global) break;
+
+               var matchStr = String(result[0]);
+               if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
+             }
+
+             var accumulatedResult = '';
+             var nextSourcePosition = 0;
+             for (var i = 0; i < results.length; i++) {
+               result = results[i];
+
+               var matched = String(result[0]);
+               var position = max$2(min$4(toInteger(result.index), S.length), 0);
+               var captures = [];
+               // NOTE: This is equivalent to
+               //   captures = result.slice(1).map(maybeToString)
+               // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
+               // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
+               // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
+               for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
+               var namedCaptures = result.groups;
+               if (functionalReplace) {
+                 var replacerArgs = [matched].concat(captures, position, S);
+                 if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
+                 var replacement = String(replaceValue.apply(undefined, replacerArgs));
+               } else {
+                 replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
+               }
+               if (position >= nextSourcePosition) {
+                 accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
+                 nextSourcePosition = position + matched.length;
+               }
+             }
+             return accumulatedResult + S.slice(nextSourcePosition);
+           }
+         ];
+       });
+
+       var MATCH = wellKnownSymbol('match');
+
+       // `IsRegExp` abstract operation
+       // https://tc39.es/ecma262/#sec-isregexp
+       var isRegexp = function (it) {
+         var isRegExp;
+         return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classofRaw(it) == 'RegExp');
+       };
+
+       var arrayPush = [].push;
+       var min$5 = Math.min;
+       var MAX_UINT32 = 0xFFFFFFFF;
+
+       // babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError
+       var SUPPORTS_Y = !fails(function () { return !RegExp(MAX_UINT32, 'y'); });
+
+       // @@split logic
+       fixRegexpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCallNative) {
+         var internalSplit;
+         if (
+           'abbc'.split(/(b)*/)[1] == 'c' ||
+           // eslint-disable-next-line regexp/no-empty-group -- required for testing
+           'test'.split(/(?:)/, -1).length != 4 ||
+           'ab'.split(/(?:ab)*/).length != 2 ||
+           '.'.split(/(.?)(.?)/).length != 4 ||
+           // eslint-disable-next-line regexp/no-assertion-capturing-group, regexp/no-empty-group -- required for testing
+           '.'.split(/()()/).length > 1 ||
+           ''.split(/.?/).length
+         ) {
+           // based on es5-shim implementation, need to rework it
+           internalSplit = function (separator, limit) {
+             var string = String(requireObjectCoercible(this));
+             var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
+             if (lim === 0) return [];
+             if (separator === undefined) return [string];
+             // If `separator` is not a regex, use native split
+             if (!isRegexp(separator)) {
+               return nativeSplit.call(string, separator, lim);
+             }
+             var output = [];
+             var flags = (separator.ignoreCase ? 'i' : '') +
+                         (separator.multiline ? 'm' : '') +
+                         (separator.unicode ? 'u' : '') +
+                         (separator.sticky ? 'y' : '');
+             var lastLastIndex = 0;
+             // Make `global` and avoid `lastIndex` issues by working with a copy
+             var separatorCopy = new RegExp(separator.source, flags + 'g');
+             var match, lastIndex, lastLength;
+             while (match = regexpExec.call(separatorCopy, string)) {
+               lastIndex = separatorCopy.lastIndex;
+               if (lastIndex > lastLastIndex) {
+                 output.push(string.slice(lastLastIndex, match.index));
+                 if (match.length > 1 && match.index < string.length) arrayPush.apply(output, match.slice(1));
+                 lastLength = match[0].length;
+                 lastLastIndex = lastIndex;
+                 if (output.length >= lim) break;
+               }
+               if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop
+             }
+             if (lastLastIndex === string.length) {
+               if (lastLength || !separatorCopy.test('')) output.push('');
+             } else output.push(string.slice(lastLastIndex));
+             return output.length > lim ? output.slice(0, lim) : output;
+           };
+         // Chakra, V8
+         } else if ('0'.split(undefined, 0).length) {
+           internalSplit = function (separator, limit) {
+             return separator === undefined && limit === 0 ? [] : nativeSplit.call(this, separator, limit);
+           };
+         } else internalSplit = nativeSplit;
+
+         return [
+           // `String.prototype.split` method
+           // https://tc39.es/ecma262/#sec-string.prototype.split
+           function split(separator, limit) {
+             var O = requireObjectCoercible(this);
+             var splitter = separator == undefined ? undefined : separator[SPLIT];
+             return splitter !== undefined
+               ? splitter.call(separator, O, limit)
+               : internalSplit.call(String(O), separator, limit);
+           },
+           // `RegExp.prototype[@@split]` method
+           // https://tc39.es/ecma262/#sec-regexp.prototype-@@split
+           //
+           // NOTE: This cannot be properly polyfilled in engines that don't support
+           // the 'y' flag.
+           function (regexp, limit) {
+             var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== nativeSplit);
+             if (res.done) return res.value;
+
+             var rx = anObject(regexp);
+             var S = String(this);
+             var C = speciesConstructor(rx, RegExp);
+
+             var unicodeMatching = rx.unicode;
+             var flags = (rx.ignoreCase ? 'i' : '') +
+                         (rx.multiline ? 'm' : '') +
+                         (rx.unicode ? 'u' : '') +
+                         (SUPPORTS_Y ? 'y' : 'g');
+
+             // ^(? + rx + ) is needed, in combination with some S slicing, to
+             // simulate the 'y' flag.
+             var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
+             var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
+             if (lim === 0) return [];
+             if (S.length === 0) return regexpExecAbstract(splitter, S) === null ? [S] : [];
+             var p = 0;
+             var q = 0;
+             var A = [];
+             while (q < S.length) {
+               splitter.lastIndex = SUPPORTS_Y ? q : 0;
+               var z = regexpExecAbstract(splitter, SUPPORTS_Y ? S : S.slice(q));
+               var e;
+               if (
+                 z === null ||
+                 (e = min$5(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
+               ) {
+                 q = advanceStringIndex(S, q, unicodeMatching);
+               } else {
+                 A.push(S.slice(p, q));
+                 if (A.length === lim) return A;
+                 for (var i = 1; i <= z.length - 1; i++) {
+                   A.push(z[i]);
+                   if (A.length === lim) return A;
+                 }
+                 q = p = e;
+               }
+             }
+             A.push(S.slice(p));
+             return A;
+           }
+         ];
+       }, !SUPPORTS_Y);
+
+       // a string of all valid unicode whitespaces
+       var whitespaces = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
+         '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
+
+       var whitespace = '[' + whitespaces + ']';
+       var ltrim = RegExp('^' + whitespace + whitespace + '*');
+       var rtrim = RegExp(whitespace + whitespace + '*$');
+
+       // `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
+       var createMethod$4 = function (TYPE) {
+         return function ($this) {
+           var string = String(requireObjectCoercible($this));
+           if (TYPE & 1) string = string.replace(ltrim, '');
+           if (TYPE & 2) string = string.replace(rtrim, '');
+           return string;
+         };
+       };
+
+       var stringTrim = {
+         // `String.prototype.{ trimLeft, trimStart }` methods
+         // https://tc39.es/ecma262/#sec-string.prototype.trimstart
+         start: createMethod$4(1),
+         // `String.prototype.{ trimRight, trimEnd }` methods
+         // https://tc39.es/ecma262/#sec-string.prototype.trimend
+         end: createMethod$4(2),
+         // `String.prototype.trim` method
+         // https://tc39.es/ecma262/#sec-string.prototype.trim
+         trim: createMethod$4(3)
+       };
+
+       var non = '\u200B\u0085\u180E';
+
+       // check that a method works with the correct list
+       // of whitespaces and has a correct name
+       var stringTrimForced = function (METHOD_NAME) {
+         return fails(function () {
+           return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;
+         });
+       };
+
+       var $trim = stringTrim.trim;
+
+
+       // `String.prototype.trim` method
+       // https://tc39.es/ecma262/#sec-string.prototype.trim
+       _export({ target: 'String', proto: true, forced: stringTrimForced('trim') }, {
+         trim: function trim() {
+           return $trim(this);
+         }
+       });
+
+       var defineProperty$6 = objectDefineProperty.f;
+
+       var FunctionPrototype = Function.prototype;
+       var FunctionPrototypeToString = FunctionPrototype.toString;
+       var nameRE = /^\s*function ([^ (]*)/;
+       var NAME$1 = 'name';
+
+       // Function instances `.name` property
+       // https://tc39.es/ecma262/#sec-function-instances-name
+       if (descriptors && !(NAME$1 in FunctionPrototype)) {
+         defineProperty$6(FunctionPrototype, NAME$1, {
+           configurable: true,
+           get: function () {
+             try {
+               return FunctionPrototypeToString.call(this).match(nameRE)[1];
+             } catch (error) {
+               return '';
+             }
+           }
+         });
+       }
+
+       // `Object.create` method
+       // https://tc39.es/ecma262/#sec-object.create
+       _export({ target: 'Object', stat: true, sham: !descriptors }, {
+         create: objectCreate
+       });
+
+       var slice = [].slice;
+       var MSIE = /MSIE .\./.test(engineUserAgent); // <- dirty ie9- check
+
+       var wrap$1 = function (scheduler) {
+         return function (handler, timeout /* , ...arguments */) {
+           var boundArgs = arguments.length > 2;
+           var args = boundArgs ? slice.call(arguments, 2) : undefined;
+           return scheduler(boundArgs ? function () {
+             // eslint-disable-next-line no-new-func -- spec requirement
+             (typeof handler == 'function' ? handler : Function(handler)).apply(this, args);
+           } : handler, timeout);
+         };
+       };
+
+       // ie9- setTimeout & setInterval additional parameters fix
+       // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
+       _export({ global: true, bind: true, forced: MSIE }, {
+         // `setTimeout` method
+         // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
+         setTimeout: wrap$1(global_1.setTimeout),
+         // `setInterval` method
+         // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
+         setInterval: wrap$1(global_1.setInterval)
+       });
+
+       var global$1 = typeof globalThis !== 'undefined' && globalThis || typeof self !== 'undefined' && self || typeof global$1 !== 'undefined' && global$1;
+       var support = {
+         searchParams: 'URLSearchParams' in global$1,
+         iterable: 'Symbol' in global$1 && 'iterator' in Symbol,
+         blob: 'FileReader' in global$1 && 'Blob' in global$1 && function () {
+           try {
+             new Blob();
+             return true;
+           } catch (e) {
+             return false;
+           }
+         }(),
+         formData: 'FormData' in global$1,
+         arrayBuffer: 'ArrayBuffer' in global$1
+       };
+
+       function isDataView(obj) {
+         return obj && DataView.prototype.isPrototypeOf(obj);
+       }
+
+       if (support.arrayBuffer) {
+         var viewClasses = ['[object Int8Array]', '[object Uint8Array]', '[object Uint8ClampedArray]', '[object Int16Array]', '[object Uint16Array]', '[object Int32Array]', '[object Uint32Array]', '[object Float32Array]', '[object Float64Array]'];
+
+         var isArrayBufferView = ArrayBuffer.isView || function (obj) {
+           return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1;
+         };
+       }
+
+       function normalizeName(name) {
+         if (typeof name !== 'string') {
+           name = String(name);
+         }
+
+         if (/[^a-z0-9\-#$%&'*+.^_`|~!]/i.test(name) || name === '') {
+           throw new TypeError('Invalid character in header field name: "' + name + '"');
+         }
+
+         return name.toLowerCase();
+       }
+
+       function normalizeValue(value) {
+         if (typeof value !== 'string') {
+           value = String(value);
+         }
+
+         return value;
+       } // Build a destructive iterator for the value list
+
+
+       function iteratorFor(items) {
+         var iterator = {
+           next: function next() {
+             var value = items.shift();
+             return {
+               done: value === undefined,
+               value: value
+             };
+           }
+         };
+
+         if (support.iterable) {
+           iterator[Symbol.iterator] = function () {
+             return iterator;
+           };
+         }
+
+         return iterator;
+       }
+
+       function Headers$1(headers) {
+         this.map = {};
+
+         if (headers instanceof Headers$1) {
+           headers.forEach(function (value, name) {
+             this.append(name, value);
+           }, this);
+         } else if (Array.isArray(headers)) {
+           headers.forEach(function (header) {
+             this.append(header[0], header[1]);
+           }, this);
+         } else if (headers) {
+           Object.getOwnPropertyNames(headers).forEach(function (name) {
+             this.append(name, headers[name]);
+           }, this);
+         }
+       }
+
+       Headers$1.prototype.append = function (name, value) {
+         name = normalizeName(name);
+         value = normalizeValue(value);
+         var oldValue = this.map[name];
+         this.map[name] = oldValue ? oldValue + ', ' + value : value;
+       };
+
+       Headers$1.prototype['delete'] = function (name) {
+         delete this.map[normalizeName(name)];
+       };
+
+       Headers$1.prototype.get = function (name) {
+         name = normalizeName(name);
+         return this.has(name) ? this.map[name] : null;
+       };
+
+       Headers$1.prototype.has = function (name) {
+         return this.map.hasOwnProperty(normalizeName(name));
+       };
+
+       Headers$1.prototype.set = function (name, value) {
+         this.map[normalizeName(name)] = normalizeValue(value);
+       };
+
+       Headers$1.prototype.forEach = function (callback, thisArg) {
+         for (var name in this.map) {
+           if (this.map.hasOwnProperty(name)) {
+             callback.call(thisArg, this.map[name], name, this);
+           }
+         }
+       };
+
+       Headers$1.prototype.keys = function () {
+         var items = [];
+         this.forEach(function (value, name) {
+           items.push(name);
          });
          return iteratorFor(items);
        };
          this.type = 'default';
          this.status = options.status === undefined ? 200 : options.status;
          this.ok = this.status >= 200 && this.status < 300;
-         this.statusText = 'statusText' in options ? options.statusText : '';
+         this.statusText = options.statusText === undefined ? '' : '' + options.statusText;
          this.headers = new Headers$1(options.headers);
          this.url = options.url || '';
 
          global$1.Response = Response;
        }
 
-       // `Symbol.toStringTag` well-known symbol
-       // https://tc39.github.io/ecma262/#sec-symbol.tostringtag
-       defineWellKnownSymbol('toStringTag');
-
-       var HAS_SPECIES_SUPPORT$2 = arrayMethodHasSpeciesSupport('splice');
-       var USES_TO_LENGTH$5 = arrayMethodUsesToLength('splice', { ACCESSORS: true, 0: 0, 1: 2 });
-
-       var max$3 = Math.max;
-       var min$6 = Math.min;
-       var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
-       var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';
-
-       // `Array.prototype.splice` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.splice
-       // with adding support of @@species
-       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$2 || !USES_TO_LENGTH$5 }, {
-         splice: function splice(start, deleteCount /* , ...items */) {
-           var O = toObject(this);
-           var len = toLength(O.length);
-           var actualStart = toAbsoluteIndex(start, len);
-           var argumentsLength = arguments.length;
-           var insertCount, actualDeleteCount, A, k, from, to;
-           if (argumentsLength === 0) {
-             insertCount = actualDeleteCount = 0;
-           } else if (argumentsLength === 1) {
-             insertCount = 0;
-             actualDeleteCount = len - actualStart;
-           } else {
-             insertCount = argumentsLength - 2;
-             actualDeleteCount = min$6(max$3(toInteger(deleteCount), 0), len - actualStart);
-           }
-           if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {
-             throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
-           }
-           A = arraySpeciesCreate(O, actualDeleteCount);
-           for (k = 0; k < actualDeleteCount; k++) {
-             from = actualStart + k;
-             if (from in O) createProperty(A, k, O[from]);
-           }
-           A.length = actualDeleteCount;
-           if (insertCount < actualDeleteCount) {
-             for (k = actualStart; k < len - actualDeleteCount; k++) {
-               from = k + actualDeleteCount;
-               to = k + insertCount;
-               if (from in O) O[to] = O[from];
-               else delete O[to];
-             }
-             for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
-           } else if (insertCount > actualDeleteCount) {
-             for (k = len - actualDeleteCount; k > actualStart; k--) {
-               from = k + actualDeleteCount - 1;
-               to = k + insertCount - 1;
-               if (from in O) O[to] = O[from];
-               else delete O[to];
-             }
-           }
-           for (k = 0; k < insertCount; k++) {
-             O[k + actualStart] = arguments[k + 2];
-           }
-           O.length = len - actualDeleteCount + insertCount;
-           return A;
-         }
-       });
-
-       // JSON[@@toStringTag] property
-       // https://tc39.github.io/ecma262/#sec-json-@@tostringtag
-       setToStringTag(global_1.JSON, 'JSON', true);
-
-       // Math[@@toStringTag] property
-       // https://tc39.github.io/ecma262/#sec-math-@@tostringtag
-       setToStringTag(Math, 'Math', true);
-
        // `Object.defineProperty` method
-       // https://tc39.github.io/ecma262/#sec-object.defineproperty
+       // https://tc39.es/ecma262/#sec-object.defineproperty
        _export({ target: 'Object', stat: true, forced: !descriptors, sham: !descriptors }, {
          defineProperty: objectDefineProperty.f
        });
 
-       var nativeGetOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor.f;
-
-
-       var FAILS_ON_PRIMITIVES$1 = fails(function () { nativeGetOwnPropertyDescriptor$2(1); });
-       var FORCED$5 = !descriptors || FAILS_ON_PRIMITIVES$1;
-
-       // `Object.getOwnPropertyDescriptor` method
-       // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor
-       _export({ target: 'Object', stat: true, forced: FORCED$5, sham: !descriptors }, {
-         getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
-           return nativeGetOwnPropertyDescriptor$2(toIndexedObject(it), key);
-         }
+       // `Object.setPrototypeOf` method
+       // https://tc39.es/ecma262/#sec-object.setprototypeof
+       _export({ target: 'Object', stat: true }, {
+         setPrototypeOf: objectSetPrototypeOf
        });
 
-       var FAILS_ON_PRIMITIVES$2 = fails(function () { objectGetPrototypeOf(1); });
+       var FAILS_ON_PRIMITIVES$1 = fails(function () { objectGetPrototypeOf(1); });
 
        // `Object.getPrototypeOf` method
-       // https://tc39.github.io/ecma262/#sec-object.getprototypeof
-       _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$2, sham: !correctPrototypeGetter }, {
+       // https://tc39.es/ecma262/#sec-object.getprototypeof
+       _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$1, sham: !correctPrototypeGetter }, {
          getPrototypeOf: function getPrototypeOf(it) {
            return objectGetPrototypeOf(toObject(it));
          }
        });
 
-       // `Object.setPrototypeOf` method
-       // https://tc39.github.io/ecma262/#sec-object.setprototypeof
-       _export({ target: 'Object', stat: true }, {
-         setPrototypeOf: objectSetPrototypeOf
-       });
-
        var slice$1 = [].slice;
        var factories = {};
 
        var construct = function (C, argsLength, args) {
          if (!(argsLength in factories)) {
            for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';
-           // eslint-disable-next-line no-new-func
+           // eslint-disable-next-line no-new-func -- we have no proper alternatives, IE8- only
            factories[argsLength] = Function('C,a', 'return new C(' + list.join(',') + ')');
          } return factories[argsLength](C, args);
        };
 
        // `Function.prototype.bind` method implementation
-       // https://tc39.github.io/ecma262/#sec-function.prototype.bind
+       // https://tc39.es/ecma262/#sec-function.prototype.bind
        var functionBind = Function.bind || function bind(that /* , ...args */) {
          var fn = aFunction$1(this);
          var partArgs = slice$1.call(arguments, 1);
        var nativeConstruct = getBuiltIn('Reflect', 'construct');
 
        // `Reflect.construct` method
-       // https://tc39.github.io/ecma262/#sec-reflect.construct
+       // https://tc39.es/ecma262/#sec-reflect.construct
        // MS Edge supports only 2 arguments and argumentsList argument is optional
        // FF Nightly sets third argument as `new.target`, but does not create `this` from it
        var NEW_TARGET_BUG = fails(function () {
        var ARGS_BUG = !fails(function () {
          nativeConstruct(function () { /* empty */ });
        });
-       var FORCED$6 = NEW_TARGET_BUG || ARGS_BUG;
+       var FORCED$5 = NEW_TARGET_BUG || ARGS_BUG;
 
-       _export({ target: 'Reflect', stat: true, forced: FORCED$6, sham: FORCED$6 }, {
+       _export({ target: 'Reflect', stat: true, forced: FORCED$5, sham: FORCED$5 }, {
          construct: function construct(Target, args /* , newTarget */) {
            aFunction$1(Target);
            anObject(args);
        });
 
        // `Reflect.get` method
-       // https://tc39.github.io/ecma262/#sec-reflect.get
+       // https://tc39.es/ecma262/#sec-reflect.get
        function get$2(target, propertyKey /* , receiver */) {
          var receiver = arguments.length < 3 ? target : arguments[2];
          var descriptor, prototype;
          get: get$2
        });
 
-       (function (factory) {
-          factory();
-       })(function () {
+       var nativeGetOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor.f;
+
+
+       var FAILS_ON_PRIMITIVES$2 = fails(function () { nativeGetOwnPropertyDescriptor$2(1); });
+       var FORCED$6 = !descriptors || FAILS_ON_PRIMITIVES$2;
+
+       // `Object.getOwnPropertyDescriptor` method
+       // https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
+       _export({ target: 'Object', stat: true, forced: FORCED$6, sham: !descriptors }, {
+         getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
+           return nativeGetOwnPropertyDescriptor$2(toIndexedObject(it), key);
+         }
+       });
+
+       var HAS_SPECIES_SUPPORT$2 = arrayMethodHasSpeciesSupport('splice');
+
+       var max$3 = Math.max;
+       var min$6 = Math.min;
+       var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
+       var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';
+
+       // `Array.prototype.splice` method
+       // https://tc39.es/ecma262/#sec-array.prototype.splice
+       // with adding support of @@species
+       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$2 }, {
+         splice: function splice(start, deleteCount /* , ...items */) {
+           var O = toObject(this);
+           var len = toLength(O.length);
+           var actualStart = toAbsoluteIndex(start, len);
+           var argumentsLength = arguments.length;
+           var insertCount, actualDeleteCount, A, k, from, to;
+           if (argumentsLength === 0) {
+             insertCount = actualDeleteCount = 0;
+           } else if (argumentsLength === 1) {
+             insertCount = 0;
+             actualDeleteCount = len - actualStart;
+           } else {
+             insertCount = argumentsLength - 2;
+             actualDeleteCount = min$6(max$3(toInteger(deleteCount), 0), len - actualStart);
+           }
+           if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {
+             throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
+           }
+           A = arraySpeciesCreate(O, actualDeleteCount);
+           for (k = 0; k < actualDeleteCount; k++) {
+             from = actualStart + k;
+             if (from in O) createProperty(A, k, O[from]);
+           }
+           A.length = actualDeleteCount;
+           if (insertCount < actualDeleteCount) {
+             for (k = actualStart; k < len - actualDeleteCount; k++) {
+               from = k + actualDeleteCount;
+               to = k + insertCount;
+               if (from in O) O[to] = O[from];
+               else delete O[to];
+             }
+             for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
+           } else if (insertCount > actualDeleteCount) {
+             for (k = len - actualDeleteCount; k > actualStart; k--) {
+               from = k + actualDeleteCount - 1;
+               to = k + insertCount - 1;
+               if (from in O) O[to] = O[from];
+               else delete O[to];
+             }
+           }
+           for (k = 0; k < insertCount; k++) {
+             O[k + actualStart] = arguments[k + 2];
+           }
+           O.length = len - actualDeleteCount + insertCount;
+           return A;
+         }
+       });
+
+       // `Symbol.toStringTag` well-known symbol
+       // https://tc39.es/ecma262/#sec-symbol.tostringtag
+       defineWellKnownSymbol('toStringTag');
+
+       // Math[@@toStringTag] property
+       // https://tc39.es/ecma262/#sec-math-@@tostringtag
+       setToStringTag(Math, 'Math', true);
+
+       // JSON[@@toStringTag] property
+       // https://tc39.es/ecma262/#sec-json-@@tostringtag
+       setToStringTag(global_1.JSON, 'JSON', true);
+
+       (function (factory) {
+          factory();
+       })(function () {
 
          function _classCallCheck(instance, Constructor) {
            if (!(instance instanceof Constructor)) {
 
            _createClass(Emitter, [{
              key: "addEventListener",
-             value: function addEventListener(type, callback) {
+             value: function addEventListener(type, callback, options) {
                if (!(type in this.listeners)) {
                  this.listeners[type] = [];
                }
 
-               this.listeners[type].push(callback);
+               this.listeners[type].push({
+                 callback: callback,
+                 options: options
+               });
              }
            }, {
              key: "removeEventListener",
                var stack = this.listeners[type];
 
                for (var i = 0, l = stack.length; i < l; i++) {
-                 if (stack[i] === callback) {
+                 if (stack[i].callback === callback) {
                    stack.splice(i, 1);
                    return;
                  }
            }, {
              key: "dispatchEvent",
              value: function dispatchEvent(event) {
-               var _this = this;
-
                if (!(event.type in this.listeners)) {
                  return;
                }
 
-               var debounce = function debounce(callback) {
-                 setTimeout(function () {
-                   return callback.call(_this, event);
-                 });
-               };
-
                var stack = this.listeners[event.type];
+               var stackToCall = stack.slice();
 
-               for (var i = 0, l = stack.length; i < l; i++) {
-                 debounce(stack[i]);
+               for (var i = 0, l = stackToCall.length; i < l; i++) {
+                 var listener = stackToCall[i];
+
+                 try {
+                   listener.callback.call(this, event);
+                 } catch (e) {
+                   Promise.resolve().then(function () {
+                     throw e;
+                   });
+                 }
+
+                 if (listener.options && listener.options.once) {
+                   this.removeEventListener(event.type, listener.callback);
+                 }
                }
 
                return !event.defaultPrevented;
            var _super = _createSuper(AbortSignal);
 
            function AbortSignal() {
-             var _this2;
+             var _this;
 
              _classCallCheck(this, AbortSignal);
 
-             _this2 = _super.call(this); // Some versions of babel does not transpile super() correctly for IE <= 10, if the parent
+             _this = _super.call(this); // Some versions of babel does not transpile super() correctly for IE <= 10, if the parent
              // constructor has failed to run, then "this.listeners" will still be undefined and then we call
              // the parent constructor directly instead as a workaround. For general details, see babel bug:
              // https://github.com/babel/babel/issues/3041
              // This hack was added as a fix for the issue described here:
              // https://github.com/Financial-Times/polyfill-library/pull/59#issuecomment-477558042
 
-             if (!_this2.listeners) {
-               Emitter.call(_assertThisInitialized(_this2));
+             if (!_this.listeners) {
+               Emitter.call(_assertThisInitialized(_this));
              } // Compared to assignment, Object.defineProperty makes properties non-enumerable by default and
              // we want Object.keys(new AbortController().signal) to be [] for compat with the native impl
 
 
-             Object.defineProperty(_assertThisInitialized(_this2), 'aborted', {
+             Object.defineProperty(_assertThisInitialized(_this), 'aborted', {
                value: false,
                writable: true,
                configurable: true
              });
-             Object.defineProperty(_assertThisInitialized(_this2), 'onabort', {
+             Object.defineProperty(_assertThisInitialized(_this), 'onabort', {
                value: null,
                writable: true,
                configurable: true
              });
-             return _this2;
+             return _this;
            }
 
            _createClass(AbortSignal, [{
        var FORCED$7 = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;
 
        // `Array.prototype.concat` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.concat
+       // https://tc39.es/ecma262/#sec-array.prototype.concat
        // with adding support of @@isConcatSpreadable and @@species
        _export({ target: 'Array', proto: true, forced: FORCED$7 }, {
-         concat: function concat(arg) { // eslint-disable-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
+         concat: function concat(arg) {
            var O = toObject(this);
            var A = arraySpeciesCreate(O, 0);
            var n = 0;
        });
 
        // `Object.assign` method
-       // https://tc39.github.io/ecma262/#sec-object.assign
+       // https://tc39.es/ecma262/#sec-object.assign
        _export({ target: 'Object', stat: true, forced: Object.assign !== objectAssign }, {
          assign: objectAssign
        });
        var $filter$1 = arrayIteration.filter;
 
 
-
        var HAS_SPECIES_SUPPORT$3 = arrayMethodHasSpeciesSupport('filter');
-       // Edge 14- issue
-       var USES_TO_LENGTH$6 = arrayMethodUsesToLength('filter');
 
        // `Array.prototype.filter` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.filter
+       // https://tc39.es/ecma262/#sec-array.prototype.filter
        // with adding support of @@species
-       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$3 || !USES_TO_LENGTH$6 }, {
+       _export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$3 }, {
          filter: function filter(callbackfn /* , thisArg */) {
            return $filter$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
+       var FAILS_ON_PRIMITIVES$3 = fails(function () { objectKeys(1); });
+
+       // `Object.keys` method
+       // https://tc39.es/ecma262/#sec-object.keys
+       _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$3 }, {
+         keys: function keys(it) {
+           return objectKeys(toObject(it));
+         }
+       });
+
        var nativeReverse = [].reverse;
        var test$1 = [1, 2];
 
        // `Array.prototype.reverse` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.reverse
+       // https://tc39.es/ecma262/#sec-array.prototype.reverse
        // fix for Safari 12.0 bug
        // https://bugs.webkit.org/show_bug.cgi?id=188794
        _export({ target: 'Array', proto: true, forced: String(test$1) === String(test$1.reverse()) }, {
          reverse: function reverse() {
-           // eslint-disable-next-line no-self-assign
+           // eslint-disable-next-line no-self-assign -- dirty hack
            if (isArray(this)) this.length = this.length;
            return nativeReverse.call(this);
          }
        });
 
-       var FAILS_ON_PRIMITIVES$3 = fails(function () { objectKeys(1); });
-
-       // `Object.keys` method
-       // https://tc39.github.io/ecma262/#sec-object.keys
-       _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$3 }, {
-         keys: function keys(it) {
-           return objectKeys(toObject(it));
-         }
-       });
-
        var trim = stringTrim.trim;
 
 
        var FORCED$8 = 1 / $parseFloat(whitespaces + '-0') !== -Infinity;
 
        // `parseFloat` method
-       // https://tc39.github.io/ecma262/#sec-parsefloat-string
+       // https://tc39.es/ecma262/#sec-parsefloat-string
        var numberParseFloat = FORCED$8 ? function parseFloat(string) {
          var trimmedString = trim(String(string));
          var result = $parseFloat(trimmedString);
        } : $parseFloat;
 
        // `parseFloat` method
-       // https://tc39.github.io/ecma262/#sec-parsefloat-string
+       // https://tc39.es/ecma262/#sec-parsefloat-string
        _export({ global: true, forced: parseFloat != numberParseFloat }, {
          parseFloat: numberParseFloat
        });
        var FORCED$9 = $parseInt(whitespaces + '08') !== 8 || $parseInt(whitespaces + '0x16') !== 22;
 
        // `parseInt` method
-       // https://tc39.github.io/ecma262/#sec-parseint-string-radix
+       // https://tc39.es/ecma262/#sec-parseint-string-radix
        var numberParseInt = FORCED$9 ? function parseInt(string, radix) {
          var S = trim$1(String(string));
          return $parseInt(S, (radix >>> 0) || (hex$1.test(S) ? 16 : 10));
        } : $parseInt;
 
        // `parseInt` method
-       // https://tc39.github.io/ecma262/#sec-parseint-string-radix
+       // https://tc39.es/ecma262/#sec-parseint-string-radix
        _export({ global: true, forced: parseInt != numberParseInt }, {
          parseInt: numberParseInt
        });
            );
          };
 
-         // eslint-disable-next-line max-len
-         if (isForced_1(CONSTRUCTOR_NAME, typeof NativeConstructor != 'function' || !(IS_WEAK || NativePrototype.forEach && !fails(function () {
-           new NativeConstructor().entries().next();
-         })))) {
+         var REPLACE = isForced_1(
+           CONSTRUCTOR_NAME,
+           typeof NativeConstructor != 'function' || !(IS_WEAK || NativePrototype.forEach && !fails(function () {
+             new NativeConstructor().entries().next();
+           }))
+         );
+
+         if (REPLACE) {
            // create collection constructor
            Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);
            internalMetadata.REQUIRED = true;
            // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false
            var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
            // most early implementations doesn't supports iterables, most modern - not close it correctly
-           // eslint-disable-next-line no-new
+           // eslint-disable-next-line no-new -- required for testing
            var ACCEPT_ITERABLES = checkCorrectnessOfIteration(function (iterable) { new NativeConstructor(iterable); });
            // for early implementations -0 and +0 not the same
            var BUGGY_ZERO = !IS_WEAK && fails(function () {
          return Constructor;
        };
 
-       var defineProperty$8 = objectDefineProperty.f;
+       var defineProperty$7 = objectDefineProperty.f;
 
 
 
                return define(this, value = value === 0 ? 0 : value, value);
              }
            });
-           if (descriptors) defineProperty$8(C.prototype, 'size', {
+           if (descriptors) defineProperty$7(C.prototype, 'size', {
              get: function () {
                return getInternalState(this).size;
              }
        };
 
        // `Set` constructor
-       // https://tc39.github.io/ecma262/#sec-set-objects
+       // https://tc39.es/ecma262/#sec-set-objects
        var es_set = collection('Set', function (init) {
          return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
        }, collectionStrong);
        }
 
        // `Symbol.asyncIterator` well-known symbol
-       // https://tc39.github.io/ecma262/#sec-symbol.asynciterator
+       // https://tc39.es/ecma262/#sec-symbol.asynciterator
        defineWellKnownSymbol('asyncIterator');
 
        var runtime_1 = createCommonjsModule(function (module) {
        var bisectRight = ascendingBisect.right;
        var bisectCenter = d3_bisector(number).center;
 
-       // `Array.prototype.fill` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.fill
-       _export({ target: 'Array', proto: true }, {
-         fill: arrayFill
-       });
-
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
-       addToUnscopables('fill');
-
        var INCORRECT_ITERATION$1 = !checkCorrectnessOfIteration(function (iterable) {
          Array.from(iterable);
        });
 
        // `Array.from` method
-       // https://tc39.github.io/ecma262/#sec-array.from
+       // https://tc39.es/ecma262/#sec-array.from
        _export({ target: 'Array', stat: true, forced: INCORRECT_ITERATION$1 }, {
          from: arrayFrom
        });
 
-       var $some$1 = arrayIteration.some;
+       // `Array.prototype.fill` method
+       // https://tc39.es/ecma262/#sec-array.prototype.fill
+       _export({ target: 'Array', proto: true }, {
+         fill: arrayFill
+       });
 
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+       addToUnscopables('fill');
+
+       var $some$1 = arrayIteration.some;
 
 
        var STRICT_METHOD$4 = arrayMethodIsStrict('some');
-       var USES_TO_LENGTH$7 = arrayMethodUsesToLength('some');
 
        // `Array.prototype.some` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.some
-       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$4 || !USES_TO_LENGTH$7 }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.some
+       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$4 }, {
          some: function some(callbackfn /* , thisArg */) {
            return $some$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
+       var exportTypedArrayStaticMethod$1 = arrayBufferViewCore.exportTypedArrayStaticMethod;
+
+
+       // `%TypedArray%.from` method
+       // https://tc39.es/ecma262/#sec-%typedarray%.from
+       exportTypedArrayStaticMethod$1('from', typedArrayFrom, typedArrayConstructorsRequireWrappers);
+
        // `Float64Array` constructor
-       // https://tc39.github.io/ecma262/#sec-typedarray-objects
+       // https://tc39.es/ecma262/#sec-typedarray-objects
        typedArrayConstructor('Float64', function (init) {
          return function Float64Array(data, byteOffset, length) {
            return init(this, data, byteOffset, length);
          };
        });
 
-       var exportTypedArrayStaticMethod$1 = arrayBufferViewCore.exportTypedArrayStaticMethod;
-
-
-       // `%TypedArray%.from` method
-       // https://tc39.github.io/ecma262/#sec-%typedarray%.from
-       exportTypedArrayStaticMethod$1('from', typedArrayFrom, typedArrayConstructorsRequireWrappers);
-
        function d3_descending (a, b) {
          return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
        }
          return Adder;
        }();
 
+       // `Object.defineProperties` method
+       // https://tc39.es/ecma262/#sec-object.defineproperties
+       _export({ target: 'Object', stat: true, forced: !descriptors, sham: !descriptors }, {
+         defineProperties: objectDefineProperties
+       });
+
        // `Map` constructor
-       // https://tc39.github.io/ecma262/#sec-map-objects
+       // https://tc39.es/ecma262/#sec-map-objects
        var es_map = collection('Map', function (init) {
          return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
        }, collectionStrong);
 
+       var test$2 = [];
+       var nativeSort = test$2.sort;
+
+       // IE8-
+       var FAILS_ON_UNDEFINED = fails(function () {
+         test$2.sort(undefined);
+       });
+       // V8 bug
+       var FAILS_ON_NULL = fails(function () {
+         test$2.sort(null);
+       });
+       // Old WebKit
+       var STRICT_METHOD$5 = arrayMethodIsStrict('sort');
+
+       var FORCED$a = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD$5;
+
+       // `Array.prototype.sort` method
+       // https://tc39.es/ecma262/#sec-array.prototype.sort
+       _export({ target: 'Array', proto: true, forced: FORCED$a }, {
+         sort: function sort(comparefn) {
+           return comparefn === undefined
+             ? nativeSort.call(toObject(this))
+             : nativeSort.call(toObject(this), aFunction$1(comparefn));
+         }
+       });
+
        var e10 = Math.sqrt(50),
            e5 = Math.sqrt(10),
            e2 = Math.sqrt(2);
          return range;
        }
 
-       var test$2 = [];
-       var nativeSort = test$2.sort;
-
-       // IE8-
-       var FAILS_ON_UNDEFINED = fails(function () {
-         test$2.sort(undefined);
-       });
-       // V8 bug
-       var FAILS_ON_NULL = fails(function () {
-         test$2.sort(null);
-       });
-       // Old WebKit
-       var STRICT_METHOD$5 = arrayMethodIsStrict('sort');
-
-       var FORCED$a = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD$5;
-
-       // `Array.prototype.sort` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.sort
-       _export({ target: 'Array', proto: true, forced: FORCED$a }, {
-         sort: function sort(comparefn) {
-           return comparefn === undefined
-             ? nativeSort.call(toObject(this))
-             : nativeSort.call(toObject(this), aFunction$1(comparefn));
-         }
-       });
-
        // `SameValue` abstract operation
-       // https://tc39.github.io/ecma262/#sec-samevalue
+       // https://tc39.es/ecma262/#sec-samevalue
        var sameValue = Object.is || function is(x, y) {
-         // eslint-disable-next-line no-self-compare
+         // eslint-disable-next-line no-self-compare -- NaN check
          return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
        };
 
        var BUGGY = !!$hypot && $hypot(Infinity, NaN) !== Infinity;
 
        // `Math.hypot` method
-       // https://tc39.github.io/ecma262/#sec-math.hypot
+       // https://tc39.es/ecma262/#sec-math.hypot
        _export({ target: 'Math', stat: true, forced: BUGGY }, {
-         hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
+         hypot: function hypot(value1, value2) {
            var sum = 0;
            var i = 0;
            var aLen = arguments.length;
        });
 
        // `Math.sign` method implementation
-       // https://tc39.github.io/ecma262/#sec-math.sign
+       // https://tc39.es/ecma262/#sec-math.sign
        var mathSign = Math.sign || function sign(x) {
-         // eslint-disable-next-line no-self-compare
+         // eslint-disable-next-line no-self-compare -- NaN check
          return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
        };
 
        // `Math.sign` method
-       // https://tc39.github.io/ecma262/#sec-math.sign
+       // https://tc39.es/ecma262/#sec-math.sign
        _export({ target: 'Math', stat: true }, {
          sign: mathSign
        });
        var $every$1 = arrayIteration.every;
 
 
-
        var STRICT_METHOD$6 = arrayMethodIsStrict('every');
-       var USES_TO_LENGTH$8 = arrayMethodUsesToLength('every');
 
        // `Array.prototype.every` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.every
-       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$6 || !USES_TO_LENGTH$8 }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.every
+       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$6 }, {
          every: function every(callbackfn /* , thisArg */) {
            return $every$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
          }
 
 
 
-
        var STRICT_METHOD$7 = arrayMethodIsStrict('reduce');
-       var USES_TO_LENGTH$9 = arrayMethodUsesToLength('reduce', { 1: 0 });
        // Chrome 80-82 has a critical bug
        // https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
        var CHROME_BUG = !engineIsNode && engineV8Version > 79 && engineV8Version < 83;
 
        // `Array.prototype.reduce` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.reduce
-       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$7 || !USES_TO_LENGTH$9 || CHROME_BUG }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.reduce
+       _export({ target: 'Array', proto: true, forced: !STRICT_METHOD$7 || CHROME_BUG }, {
          reduce: function reduce(callbackfn /* , initialValue */) {
            return $reduce$1(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
          }
        var $find$1 = arrayIteration.find;
 
 
-
        var FIND = 'find';
        var SKIPS_HOLES = true;
 
-       var USES_TO_LENGTH$a = arrayMethodUsesToLength(FIND);
-
        // Shouldn't skip holes
        if (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });
 
        // `Array.prototype.find` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.find
-       _export({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH$a }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.find
+       _export({ target: 'Array', proto: true, forced: SKIPS_HOLES }, {
          find: function find(callbackfn /* , that = undefined */) {
            return $find$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
        addToUnscopables(FIND);
 
        function matcher (selector) {
          };
        });
 
-       // `Object.defineProperties` method
-       // https://tc39.github.io/ecma262/#sec-object.defineproperties
-       _export({ target: 'Object', stat: true, forced: !descriptors, sham: !descriptors }, {
-         defineProperties: objectDefineProperties
-       });
-
        function DragEvent(type, _ref) {
          var sourceEvent = _ref.sourceEvent,
              subject = _ref.subject,
          return drag;
        }
 
-       var defineProperty$9 = objectDefineProperty.f;
+       var defineProperty$8 = objectDefineProperty.f;
        var getOwnPropertyNames$1 = objectGetOwnPropertyNames.f;
 
 
        })));
 
        // `RegExp` constructor
-       // https://tc39.github.io/ecma262/#sec-regexp-constructor
+       // https://tc39.es/ecma262/#sec-regexp-constructor
        if (FORCED$b) {
          var RegExpWrapper = function RegExp(pattern, flags) {
            var thisIsRegExp = this instanceof RegExpWrapper;
            return result;
          };
          var proxy = function (key) {
-           key in RegExpWrapper || defineProperty$9(RegExpWrapper, key, {
+           key in RegExpWrapper || defineProperty$8(RegExpWrapper, key, {
              configurable: true,
              get: function () { return NativeRegExp[key]; },
              set: function (it) { NativeRegExp[key] = it; }
          redefine(global_1, 'RegExp', RegExpWrapper);
        }
 
-       // https://tc39.github.io/ecma262/#sec-get-regexp-@@species
+       // https://tc39.es/ecma262/#sec-get-regexp-@@species
        setSpecies('RegExp');
 
        function define (constructor, factory, prototype) {
        }
 
        // `Function.prototype.bind` method
-       // https://tc39.github.io/ecma262/#sec-function.prototype.bind
+       // https://tc39.es/ecma262/#sec-function.prototype.bind
        _export({ target: 'Function', proto: true }, {
          bind: functionBind
        });
        var FAILS_ON_PRIMITIVES$4 = fails(function () { nativeFreeze(1); });
 
        // `Object.freeze` method
-       // https://tc39.github.io/ecma262/#sec-object.freeze
+       // https://tc39.es/ecma262/#sec-object.freeze
        _export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$4, sham: !freezing }, {
          freeze: function freeze(it) {
            return nativeFreeze && isObject(it) ? nativeFreeze(onFreeze(it)) : it;
        fixRegexpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {
          return [
            // `String.prototype.match` method
-           // https://tc39.github.io/ecma262/#sec-string.prototype.match
+           // https://tc39.es/ecma262/#sec-string.prototype.match
            function match(regexp) {
              var O = requireObjectCoercible(this);
              var matcher = regexp == undefined ? undefined : regexp[MATCH];
              return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
            },
            // `RegExp.prototype[@@match]` method
-           // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
+           // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
            function (regexp) {
              var res = maybeCallNative(nativeMatch, regexp, this);
              if (res.done) return res.value;
 
        var objectToArray = {
          // `Object.entries` method
-         // https://tc39.github.io/ecma262/#sec-object.entries
+         // https://tc39.es/ecma262/#sec-object.entries
          entries: createMethod$5(true),
          // `Object.values` method
-         // https://tc39.github.io/ecma262/#sec-object.values
+         // https://tc39.es/ecma262/#sec-object.values
          values: createMethod$5(false)
        };
 
        var $values = objectToArray.values;
 
        // `Object.values` method
-       // https://tc39.github.io/ecma262/#sec-object.values
+       // https://tc39.es/ecma262/#sec-object.values
        _export({ target: 'Object', stat: true }, {
          values: function values(O) {
            return $values(O);
        var $findIndex$1 = arrayIteration.findIndex;
 
 
-
        var FIND_INDEX = 'findIndex';
        var SKIPS_HOLES$1 = true;
 
-       var USES_TO_LENGTH$b = arrayMethodUsesToLength(FIND_INDEX);
-
        // Shouldn't skip holes
        if (FIND_INDEX in []) Array(1)[FIND_INDEX](function () { SKIPS_HOLES$1 = false; });
 
        // `Array.prototype.findIndex` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.findindex
-       _export({ target: 'Array', proto: true, forced: SKIPS_HOLES$1 || !USES_TO_LENGTH$b }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.findindex
+       _export({ target: 'Array', proto: true, forced: SKIPS_HOLES$1 }, {
          findIndex: function findIndex(callbackfn /* , that = undefined */) {
            return $findIndex$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
        addToUnscopables(FIND_INDEX);
 
        var $includes$1 = arrayIncludes.includes;
 
 
-
-       var USES_TO_LENGTH$c = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
-
        // `Array.prototype.includes` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.includes
-       _export({ target: 'Array', proto: true, forced: !USES_TO_LENGTH$c }, {
+       // https://tc39.es/ecma262/#sec-array.prototype.includes
+       _export({ target: 'Array', proto: true }, {
          includes: function includes(el /* , fromIndex = 0 */) {
            return $includes$1(this, el, arguments.length > 1 ? arguments[1] : undefined);
          }
        });
 
-       // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+       // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
        addToUnscopables('includes');
 
        var notARegexp = function (it) {
        };
 
        // `String.prototype.includes` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.includes
+       // https://tc39.es/ecma262/#sec-string.prototype.includes
        _export({ target: 'String', proto: true, forced: !correctIsRegexpLogic('includes') }, {
          includes: function includes(searchString /* , position = 0 */) {
            return !!~String(requireObjectCoercible(this))
          return _detected;
        }
 
+       // `Number.MAX_SAFE_INTEGER` constant
+       // https://tc39.es/ecma262/#sec-number.max_safe_integer
+       _export({ target: 'Number', stat: true }, {
+         MAX_SAFE_INTEGER: 0x1FFFFFFFFFFFFF
+       });
+
        var getOwnPropertyNames$2 = objectGetOwnPropertyNames.f;
        var getOwnPropertyDescriptor$3 = objectGetOwnPropertyDescriptor.f;
-       var defineProperty$a = objectDefineProperty.f;
+       var defineProperty$9 = objectDefineProperty.f;
        var trim$2 = stringTrim.trim;
 
        var NUMBER = 'Number';
        var BROKEN_CLASSOF = classofRaw(objectCreate(NumberPrototype)) == NUMBER;
 
        // `ToNumber` abstract operation
-       // https://tc39.github.io/ecma262/#sec-tonumber
+       // https://tc39.es/ecma262/#sec-tonumber
        var toNumber = function (argument) {
          var it = toPrimitive(argument, false);
          var first, third, radix, maxCode, digits, length, index, code;
        };
 
        // `Number` constructor
-       // https://tc39.github.io/ecma262/#sec-number-constructor
+       // https://tc39.es/ecma262/#sec-number-constructor
        if (isForced_1(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
          var NumberWrapper = function Number(value) {
            var it = arguments.length < 1 ? 0 : value;
            'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
            // ES2015 (in case, if modules with ES2015 Number statics required before):
            'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
-           'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
+           'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger,' +
+           // ESNext
+           'fromString,range'
          ).split(','), j$2 = 0, key$1; keys$3.length > j$2; j$2++) {
            if (has(NativeNumber, key$1 = keys$3[j$2]) && !has(NumberWrapper, key$1)) {
-             defineProperty$a(NumberWrapper, key$1, getOwnPropertyDescriptor$3(NativeNumber, key$1));
+             defineProperty$9(NumberWrapper, key$1, getOwnPropertyDescriptor$3(NativeNumber, key$1));
            }
          }
          NumberWrapper.prototype = NumberPrototype;
          redefine(global_1, NUMBER, NumberWrapper);
        }
 
-       // `Number.MAX_SAFE_INTEGER` constant
-       // https://tc39.github.io/ecma262/#sec-number.max_safe_integer
-       _export({ target: 'Number', stat: true }, {
-         MAX_SAFE_INTEGER: 0x1FFFFFFFFFFFFF
-       });
-
        var aesJs = createCommonjsModule(function (module, exports) {
          /*! MIT License. Copyright 2015-2018 Richard Moore <me@ricmoo.com>. See LICENSE.txt. */
          (function (root) {
        }
 
        // `Array.prototype.lastIndexOf` method
-       // https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
+       // https://tc39.es/ecma262/#sec-array.prototype.lastindexof
        _export({ target: 'Array', proto: true, forced: arrayLastIndexOf !== [].lastIndexOf }, {
          lastIndexOf: arrayLastIndexOf
        });
        var UNSUPPORTED_Y$3 = regexpStickyHelpers.UNSUPPORTED_Y;
 
        // `RegExp.prototype.flags` getter
-       // https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
+       // https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
        if (descriptors && (/./g.flags != 'g' || UNSUPPORTED_Y$3)) {
          objectDefineProperty.f(RegExp.prototype, 'flags', {
            configurable: true,
        }
 
        // `thisNumberValue` abstract operation
-       // https://tc39.github.io/ecma262/#sec-thisnumbervalue
+       // https://tc39.es/ecma262/#sec-thisnumbervalue
        var thisNumberValue = function (value) {
          if (typeof value != 'number' && classofRaw(value) != 'Number') {
            throw TypeError('Incorrect invocation');
        };
 
        // `String.prototype.repeat` method implementation
-       // https://tc39.github.io/ecma262/#sec-string.prototype.repeat
+       // https://tc39.es/ecma262/#sec-string.prototype.repeat
        var stringRepeat = ''.repeat || function repeat(count) {
          var str = String(requireObjectCoercible(this));
          var result = '';
          } return n;
        };
 
+       var multiply = function (data, n, c) {
+         var index = -1;
+         var c2 = c;
+         while (++index < 6) {
+           c2 += n * data[index];
+           data[index] = c2 % 1e7;
+           c2 = floor$6(c2 / 1e7);
+         }
+       };
+
+       var divide = function (data, n) {
+         var index = 6;
+         var c = 0;
+         while (--index >= 0) {
+           c += data[index];
+           data[index] = floor$6(c / n);
+           c = (c % n) * 1e7;
+         }
+       };
+
+       var dataToString = function (data) {
+         var index = 6;
+         var s = '';
+         while (--index >= 0) {
+           if (s !== '' || index === 0 || data[index] !== 0) {
+             var t = String(data[index]);
+             s = s === '' ? t : s + stringRepeat.call('0', 7 - t.length) + t;
+           }
+         } return s;
+       };
+
        var FORCED$c = nativeToFixed && (
          0.00008.toFixed(3) !== '0.000' ||
          0.9.toFixed(0) !== '1' ||
        });
 
        // `Number.prototype.toFixed` method
-       // https://tc39.github.io/ecma262/#sec-number.prototype.tofixed
+       // https://tc39.es/ecma262/#sec-number.prototype.tofixed
        _export({ target: 'Number', proto: true, forced: FORCED$c }, {
-         // eslint-disable-next-line max-statements
          toFixed: function toFixed(fractionDigits) {
            var number = thisNumberValue(this);
            var fractDigits = toInteger(fractionDigits);
            var result = '0';
            var e, z, j, k;
 
-           var multiply = function (n, c) {
-             var index = -1;
-             var c2 = c;
-             while (++index < 6) {
-               c2 += n * data[index];
-               data[index] = c2 % 1e7;
-               c2 = floor$6(c2 / 1e7);
-             }
-           };
-
-           var divide = function (n) {
-             var index = 6;
-             var c = 0;
-             while (--index >= 0) {
-               c += data[index];
-               data[index] = floor$6(c / n);
-               c = (c % n) * 1e7;
-             }
-           };
-
-           var dataToString = function () {
-             var index = 6;
-             var s = '';
-             while (--index >= 0) {
-               if (s !== '' || index === 0 || data[index] !== 0) {
-                 var t = String(data[index]);
-                 s = s === '' ? t : s + stringRepeat.call('0', 7 - t.length) + t;
-               }
-             } return s;
-           };
-
            if (fractDigits < 0 || fractDigits > 20) throw RangeError('Incorrect fraction digits');
-           // eslint-disable-next-line no-self-compare
+           // eslint-disable-next-line no-self-compare -- NaN check
            if (number != number) return 'NaN';
            if (number <= -1e21 || number >= 1e21) return String(number);
            if (number < 0) {
              z *= 0x10000000000000;
              e = 52 - e;
              if (e > 0) {
-               multiply(0, z);
+               multiply(data, 0, z);
                j = fractDigits;
                while (j >= 7) {
-                 multiply(1e7, 0);
+                 multiply(data, 1e7, 0);
                  j -= 7;
                }
-               multiply(pow$2(10, j, 1), 0);
+               multiply(data, pow$2(10, j, 1), 0);
                j = e - 1;
                while (j >= 23) {
-                 divide(1 << 23);
+                 divide(data, 1 << 23);
                  j -= 23;
                }
-               divide(1 << j);
-               multiply(1, 1);
-               divide(2);
-               result = dataToString();
+               divide(data, 1 << j);
+               multiply(data, 1, 1);
+               divide(data, 2);
+               result = dataToString(data);
              } else {
-               multiply(0, z);
-               multiply(1 << -e, 0);
-               result = dataToString() + stringRepeat.call('0', fractDigits);
+               multiply(data, 0, z);
+               multiply(data, 1 << -e, 0);
+               result = dataToString(data) + stringRepeat.call('0', fractDigits);
              }
            }
            if (fractDigits > 0) {
        });
 
        // `Number.prototype.toPrecision` method
-       // https://tc39.github.io/ecma262/#sec-number.prototype.toprecision
+       // https://tc39.es/ecma262/#sec-number.prototype.toprecision
        _export({ target: 'Number', proto: true, forced: FORCED$d }, {
          toPrecision: function toPrecision(precision) {
            return precision === undefined
        var exp$1 = Math.exp;
 
        // `Math.expm1` method implementation
-       // https://tc39.github.io/ecma262/#sec-math.expm1
+       // https://tc39.es/ecma262/#sec-math.expm1
        var mathExpm1 = (!nativeExpm1
          // Old FF bug
          || nativeExpm1(10) > 22025.465794806719 || nativeExpm1(10) < 22025.4657948067165168
 
        var stringPad = {
          // `String.prototype.padStart` method
-         // https://tc39.github.io/ecma262/#sec-string.prototype.padstart
+         // https://tc39.es/ecma262/#sec-string.prototype.padstart
          start: createMethod$6(false),
          // `String.prototype.padEnd` method
-         // https://tc39.github.io/ecma262/#sec-string.prototype.padend
+         // https://tc39.es/ecma262/#sec-string.prototype.padend
          end: createMethod$6(true)
        };
 
        var nativeDateToISOString = DatePrototype$1.toISOString;
 
        // `Date.prototype.toISOString` method implementation
-       // https://tc39.github.io/ecma262/#sec-date.prototype.toisostring
+       // https://tc39.es/ecma262/#sec-date.prototype.toisostring
        // PhantomJS / old WebKit fails here:
        var dateToIsoString = (fails(function () {
          return nativeDateToISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';
        } : nativeDateToISOString;
 
        // `Date.prototype.toISOString` method
-       // https://tc39.github.io/ecma262/#sec-date.prototype.toisostring
+       // https://tc39.es/ecma262/#sec-date.prototype.toisostring
        // PhantomJS / old WebKit has a broken implementations
        _export({ target: 'Date', proto: true, forced: Date.prototype.toISOString !== dateToIsoString }, {
          toISOString: dateToIsoString
        }
 
        // `String.prototype.repeat` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.repeat
+       // https://tc39.es/ecma262/#sec-string.prototype.repeat
        _export({ target: 'String', proto: true }, {
          repeat: stringRepeat
        });
          return mode;
        }
 
-       // Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829
-       var NON_GENERIC = !!nativePromiseConstructor && fails(function () {
-         nativePromiseConstructor.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });
-       });
-
-       // `Promise.prototype.finally` method
-       // https://tc39.github.io/ecma262/#sec-promise.prototype.finally
-       _export({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
-         'finally': function (onFinally) {
-           var C = speciesConstructor(this, getBuiltIn('Promise'));
-           var isFunction = typeof onFinally == 'function';
-           return this.then(
-             isFunction ? function (x) {
-               return promiseResolve(C, onFinally()).then(function () { return x; });
-             } : onFinally,
-             isFunction ? function (e) {
-               return promiseResolve(C, onFinally()).then(function () { throw e; });
-             } : onFinally
-           );
-         }
-       });
-
-       // patch native Promise.prototype for native async functions
-       if ( typeof nativePromiseConstructor == 'function' && !nativePromiseConstructor.prototype['finally']) {
-         redefine(nativePromiseConstructor.prototype, 'finally', getBuiltIn('Promise').prototype['finally']);
-       }
-
        // @@search logic
        fixRegexpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybeCallNative) {
          return [
            // `String.prototype.search` method
-           // https://tc39.github.io/ecma262/#sec-string.prototype.search
+           // https://tc39.es/ecma262/#sec-string.prototype.search
            function search(regexp) {
              var O = requireObjectCoercible(this);
              var searcher = regexp == undefined ? undefined : regexp[SEARCH];
              return searcher !== undefined ? searcher.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
            },
            // `RegExp.prototype[@@search]` method
-           // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search
+           // https://tc39.es/ecma262/#sec-regexp.prototype-@@search
            function (regexp) {
              var res = maybeCallNative(nativeSearch, regexp, this);
              if (res.done) return res.value;
          ];
        });
 
+       // Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829
+       var NON_GENERIC = !!nativePromiseConstructor && fails(function () {
+         nativePromiseConstructor.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });
+       });
+
+       // `Promise.prototype.finally` method
+       // https://tc39.es/ecma262/#sec-promise.prototype.finally
+       _export({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
+         'finally': function (onFinally) {
+           var C = speciesConstructor(this, getBuiltIn('Promise'));
+           var isFunction = typeof onFinally == 'function';
+           return this.then(
+             isFunction ? function (x) {
+               return promiseResolve(C, onFinally()).then(function () { return x; });
+             } : onFinally,
+             isFunction ? function (e) {
+               return promiseResolve(C, onFinally()).then(function () { throw e; });
+             } : onFinally
+           );
+         }
+       });
+
+       // patch native Promise.prototype for native async functions
+       if ( typeof nativePromiseConstructor == 'function' && !nativePromiseConstructor.prototype['finally']) {
+         redefine(nativePromiseConstructor.prototype, 'finally', getBuiltIn('Promise').prototype['finally']);
+       }
+
        function quickselect$1(arr, k, left, right, compare) {
          quickselectStep(arr, k, left || 0, right || arr.length - 1, compare || defaultCompare);
        }
        var quot = /"/g;
 
        // B.2.3.2.1 CreateHTML(string, tag, attribute, value)
-       // https://tc39.github.io/ecma262/#sec-createhtml
+       // https://tc39.es/ecma262/#sec-createhtml
        var createHtml = function (string, tag, attribute, value) {
          var S = String(requireObjectCoercible(string));
          var p1 = '<' + tag;
        };
 
        // `String.prototype.link` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.link
+       // https://tc39.es/ecma262/#sec-string.prototype.link
        _export({ target: 'String', proto: true, forced: stringHtmlForced('link') }, {
          link: function link(url) {
            return createHtml(this, 'a', 'href', url);
          }
        });
 
-       var getOwnPropertyDescriptor$4 = objectGetOwnPropertyDescriptor.f;
-
-
-
-
-
-
-       var nativeEndsWith = ''.endsWith;
-       var min$8 = Math.min;
-
-       var CORRECT_IS_REGEXP_LOGIC = correctIsRegexpLogic('endsWith');
-       // https://github.com/zloirock/core-js/pull/702
-       var MDN_POLYFILL_BUG =  !CORRECT_IS_REGEXP_LOGIC && !!function () {
-         var descriptor = getOwnPropertyDescriptor$4(String.prototype, 'endsWith');
-         return descriptor && !descriptor.writable;
-       }();
-
-       // `String.prototype.endsWith` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.endswith
-       _export({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
-         endsWith: function endsWith(searchString /* , endPosition = @length */) {
-           var that = String(requireObjectCoercible(this));
-           notARegexp(searchString);
-           var endPosition = arguments.length > 1 ? arguments[1] : undefined;
-           var len = toLength(that.length);
-           var end = endPosition === undefined ? len : min$8(toLength(endPosition), len);
-           var search = String(searchString);
-           return nativeEndsWith
-             ? nativeEndsWith.call(that, search, end)
-             : that.slice(end - search.length, end) === search;
-         }
-       });
-
-       var getOwnPropertyDescriptor$5 = objectGetOwnPropertyDescriptor.f;
-
-
-
-
-
-
-       var nativeStartsWith = ''.startsWith;
-       var min$9 = Math.min;
-
-       var CORRECT_IS_REGEXP_LOGIC$1 = correctIsRegexpLogic('startsWith');
-       // https://github.com/zloirock/core-js/pull/702
-       var MDN_POLYFILL_BUG$1 =  !CORRECT_IS_REGEXP_LOGIC$1 && !!function () {
-         var descriptor = getOwnPropertyDescriptor$5(String.prototype, 'startsWith');
-         return descriptor && !descriptor.writable;
-       }();
-
-       // `String.prototype.startsWith` method
-       // https://tc39.github.io/ecma262/#sec-string.prototype.startswith
-       _export({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG$1 && !CORRECT_IS_REGEXP_LOGIC$1 }, {
-         startsWith: function startsWith(searchString /* , position = 0 */) {
-           var that = String(requireObjectCoercible(this));
-           notARegexp(searchString);
-           var index = toLength(min$9(arguments.length > 1 ? arguments[1] : undefined, that.length));
-           var search = String(searchString);
-           return nativeStartsWith
-             ? nativeStartsWith.call(that, search, index)
-             : that.slice(index, index + search.length) === search;
-         }
-       });
-
        var $trimEnd = stringTrim.end;
 
 
        } : ''.trimEnd;
 
        // `String.prototype.{ trimEnd, trimRight }` methods
-       // https://github.com/tc39/ecmascript-string-left-right-trim
+       // https://tc39.es/ecma262/#sec-string.prototype.trimend
+       // https://tc39.es/ecma262/#String.prototype.trimright
        _export({ target: 'String', proto: true, forced: FORCED$e }, {
          trimEnd: trimEnd,
          trimRight: trimEnd
                  };
                }
 
-               var text = cap[0].replace(/^ {4}/gm, '');
+               var text = cap[0].replace(/^ {1,4}/gm, '');
                return {
                  type: 'code',
                  raw: cap[0],
              var cap = this.rules.block.heading.exec(src);
 
              if (cap) {
+               var text = cap[2].trim(); // remove trailing #s
+
+               if (/#$/.test(text)) {
+                 var trimmed = rtrim$2(text, '#');
+
+                 if (this.options.pedantic) {
+                   text = trimmed.trim();
+                 } else if (!trimmed || / $/.test(trimmed)) {
+                   // CommonMark requires space before trailing #s
+                   text = trimmed.trim();
+                 }
+               }
+
                return {
                  type: 'heading',
                  raw: cap[0],
                  depth: cap[1].length,
-                 text: cap[2]
+                 text: text
                };
              }
            }
                  if (i !== l - 1) {
                    bnext = this.rules.block.listItemStart.exec(itemMatch[i + 1]);
 
-                   if (bnext[1].length > bcurr[0].length || bnext[1].length > 3) {
+                   if (!this.options.pedantic ? bnext[1].length > bcurr[0].length || bnext[1].length > 3 : bnext[1].length > bcurr[1].length) {
                      // nested list
                      itemMatch.splice(i, 2, itemMatch[i] + '\n' + itemMatch[i + 1]);
                      i--;
                  } // Check for task list items
 
 
-                 istask = /^\[[ xX]\] /.test(item);
-                 ischecked = undefined;
+                 if (this.options.gfm) {
+                   istask = /^\[[ xX]\] /.test(item);
+                   ischecked = undefined;
 
-                 if (istask) {
-                   ischecked = item[1] !== ' ';
-                   item = item.replace(/^\[[ xX]\] +/, '');
+                   if (istask) {
+                     ischecked = item[1] !== ' ';
+                     item = item.replace(/^\[[ xX]\] +/, '');
+                   }
                  }
 
                  list.items.push({
              var cap = this.rules.inline.link.exec(src);
 
              if (cap) {
-               var lastParenIndex = findClosingBracket$1(cap[2], '()');
+               var trimmedUrl = cap[2].trim();
+
+               if (!this.options.pedantic && /^</.test(trimmedUrl)) {
+                 // commonmark requires matching angle brackets
+                 if (!/>$/.test(trimmedUrl)) {
+                   return;
+                 } // ending angle bracket cannot be escaped
+
 
-               if (lastParenIndex > -1) {
-                 var start = cap[0].indexOf('!') === 0 ? 5 : 4;
-                 var linkLen = start + cap[1].length + lastParenIndex;
-                 cap[2] = cap[2].substring(0, lastParenIndex);
-                 cap[0] = cap[0].substring(0, linkLen).trim();
-                 cap[3] = '';
+                 var rtrimSlash = rtrim$2(trimmedUrl.slice(0, -1), '\\');
+
+                 if ((trimmedUrl.length - rtrimSlash.length) % 2 === 0) {
+                   return;
+                 }
+               } else {
+                 // find closing parenthesis
+                 var lastParenIndex = findClosingBracket$1(cap[2], '()');
+
+                 if (lastParenIndex > -1) {
+                   var start = cap[0].indexOf('!') === 0 ? 5 : 4;
+                   var linkLen = start + cap[1].length + lastParenIndex;
+                   cap[2] = cap[2].substring(0, lastParenIndex);
+                   cap[0] = cap[0].substring(0, linkLen).trim();
+                   cap[3] = '';
+                 }
                }
 
                var href = cap[2];
                var title = '';
 
                if (this.options.pedantic) {
+                 // split pedantic href and title
                  var link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
 
                  if (link) {
                    href = link[1];
                    title = link[3];
-                 } else {
-                   title = '';
                  }
                } else {
                  title = cap[3] ? cap[3].slice(1, -1) : '';
                }
 
-               href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
-               var token = outputLink(cap, {
+               href = href.trim();
+
+               if (/^</.test(href)) {
+                 if (this.options.pedantic && !/>$/.test(trimmedUrl)) {
+                   // pedantic allows starting angle bracket without ending angle bracket
+                   href = href.slice(1);
+                 } else {
+                   href = href.slice(1, -1);
+                 }
+               }
+
+               return outputLink(cap, {
                  href: href ? href.replace(this.rules.inline._escapes, '$1') : href,
                  title: title ? title.replace(this.rules.inline._escapes, '$1') : title
                }, cap[0]);
-               return token;
              }
            }
          }, {
                  };
                }
 
-               var token = outputLink(cap, link, cap[0]);
-               return token;
+               return outputLink(cap, link, cap[0]);
              }
            }
          }, {
              if (cap) {
                var text = cap[2].replace(/\n/g, ' ');
                var hasNonSpaceChars = /[^ ]/.test(text);
-               var hasSpaceCharsOnBothEnds = text.startsWith(' ') && text.endsWith(' ');
+               var hasSpaceCharsOnBothEnds = /^ /.test(text) && / $/.test(text);
 
                if (hasNonSpaceChars && hasSpaceCharsOnBothEnds) {
                  text = text.substring(1, text.length - 1);
                return {
                  type: 'del',
                  raw: cap[0],
-                 text: cap[1]
+                 text: cap[2]
                };
              }
            }
         */
 
        var block = {
-         newline: /^\n+/,
-         code: /^( {4}[^\n]+\n*)+/,
+         newline: /^(?: *(?:\n|$))+/,
+         code: /^( {4}[^\n]+(?:\n(?: *(?:\n|$))*)?)+/,
          fences: /^ {0,3}(`{3,}(?=[^`\n]*\n)|~{3,})([^\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
          hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
-         heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
+         heading: /^ {0,3}(#{1,6})(?=\s|$)(.*)(?:\n+|$)/,
          blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
          list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?! {0,3}bull )\n*|\s*$)/,
          html: '^ {0,3}(?:' // optional indentation
          lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
          // regex template, placeholders will be replaced according to different paragraph
          // interruption rules of commonmark and the original markdown spec:
-         _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
+         _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html| +\n)[^\n]+)*)/,
          text: /^[^\n]+/
        };
        block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
          html: edit$1('^ *(?:comment *(?:\\n|\\s*$)' + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
          + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))').replace('comment', block._comment).replace(/tag/g, '(?!(?:' + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub' + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)' + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b').getRegex(),
          def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
-         heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
+         heading: /^(#{1,6})(.*)(?:\n+|$)/,
          fences: noopTest$1,
          // fences not supported
          paragraph: edit$1(block.normal._paragraph).replace('hr', block.hr).replace('heading', ' *#{1,6} *[^\n]').replace('lheading', block.lheading).replace('blockquote', ' {0,3}>').replace('|fences', '').replace('|list', '').replace('|html', '').getRegex()
        inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
        inline.tag = edit$1(inline.tag).replace('comment', inline._comment).replace('attribute', inline._attribute).getRegex();
        inline._label = /(?:\[(?:\\.|[^\[\]\\])*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
-       inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
+       inline._href = /<(?:\\.|[^\n<>\\])+>|[^\s\x00-\x1f]*/;
        inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
        inline.link = edit$1(inline.link).replace('label', inline._label).replace('href', inline._href).replace('title', inline._title).getRegex();
        inline.reflink = edit$1(inline.reflink).replace('label', inline._label).getRegex();
          _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
          url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
          _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
-         del: /^~+(?=\S)([\s\S]*?\S)~+/,
-         text: /^(`+|[^`])(?:(?= {2,}\n)|[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
+         del: /^(~~?)(?=[^\s~])([\s\S]*?[^\s~])\1(?=[^~]|$)/,
+         text: /^([`~]+|[^`~])(?:(?= {2,}\n)|[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
        });
        inline.gfm.url = edit$1(inline.gfm.url, 'i').replace('email', inline.gfm._extended_email).getRegex();
        /**
 
          _createClass(Lexer, [{
            key: "lex",
-
+           value:
            /**
             * Preprocessing
             */
-           value: function lex(src) {
+           function lex(src) {
              src = src.replace(/\r\n|\r/g, '\n').replace(/\t/g, '    ');
              this.blockTokens(src, this.tokens, true);
              this.inline(this.tokens);
            value: function blockTokens(src) {
              var tokens = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
              var top = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
-             src = src.replace(/^ +$/gm, '');
+
+             if (this.options.pedantic) {
+               src = src.replace(/^ +$/gm, '');
+             }
+
              var token, i, l, lastToken;
 
              while (src) {
              var tokens = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
              var inLink = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
              var inRawBlock = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
-             var prevChar = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : '';
              var token; // String with links masked to avoid interference with em and strong
 
              var maskedSrc = src;
-             var match; // Mask out reflinks
+             var match;
+             var keepPrevChar, prevChar; // Mask out reflinks
 
              if (this.tokens.links) {
                var links = Object.keys(this.tokens.links);
              }
 
              while (src) {
-               // escape
+               if (!keepPrevChar) {
+                 prevChar = '';
+               }
+
+               keepPrevChar = false; // escape
+
                if (token = this.tokenizer.escape(src)) {
                  src = src.substring(token.raw.length);
                  tokens.push(token);
                if (token = this.tokenizer.inlineText(src, inRawBlock, smartypants)) {
                  src = src.substring(token.raw.length);
                  prevChar = token.raw.slice(-1);
+                 keepPrevChar = true;
                  tokens.push(token);
                  continue;
                }
              return tokens;
            }
          }], [{
-           key: "lex",
-
+           key: "rules",
+           get: function get() {
+             return {
+               block: block$1,
+               inline: inline$1
+             };
+           }
            /**
             * Static Lex Method
             */
+
+         }, {
+           key: "lex",
            value: function lex(src, options) {
              var lexer = new Lexer(options);
              return lexer.lex(src);
              var lexer = new Lexer(options);
              return lexer.inlineTokens(src);
            }
-         }, {
-           key: "rules",
-           get: function get() {
-             return {
-               block: block$1,
-               inline: inline$1
-             };
-           }
          }]);
 
          return Lexer;
                }
              }
 
+             _code = _code.replace(/\n$/, '') + '\n';
+
              if (!lang) {
                return '<pre><code>' + (escaped ? _code : escape$2(_code, true)) + '</code></pre>\n';
              }
 
          _createClass(TextRenderer, [{
            key: "strong",
-           // no need for block level renderers
-           value: function strong(text) {
+           value: // no need for block level renderers
+           function strong(text) {
              return text;
            }
          }, {
 
          _createClass(Parser, [{
            key: "parse",
-
+           value:
            /**
             * Parse Loop
             */
-           value: function parse(tokens) {
+           function parse(tokens) {
              var top = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
              var out = '',
                  i,
        });
 
        // `Date.prototype.toJSON` method
-       // https://tc39.github.io/ecma262/#sec-date.prototype.tojson
+       // https://tc39.es/ecma262/#sec-date.prototype.tojson
        _export({ target: 'Date', proto: true, forced: FORCED$f }, {
-         // eslint-disable-next-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
          toJSON: function toJSON(key) {
            var O = toObject(this);
            var pv = toPrimitive(O);
          return root$1.Date.now();
        };
 
+       /** Used to match a single whitespace character. */
+       var reWhitespace = /\s/;
+       /**
+        * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace
+        * character of `string`.
+        *
+        * @private
+        * @param {string} string The string to inspect.
+        * @returns {number} Returns the index of the last non-whitespace character.
+        */
+
+       function trimmedEndIndex(string) {
+         var index = string.length;
+
+         while (index-- && reWhitespace.test(string.charAt(index))) {}
+
+         return index;
+       }
+
+       /** Used to match leading whitespace. */
+
+       var reTrimStart = /^\s+/;
+       /**
+        * The base implementation of `_.trim`.
+        *
+        * @private
+        * @param {string} string The string to trim.
+        * @returns {string} Returns the trimmed string.
+        */
+
+       function baseTrim(string) {
+         return string ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '') : string;
+       }
+
        /** Built-in value references. */
 
        var _Symbol = root$1.Symbol;
        /** Used as references for various `Number` constants. */
 
        var NAN = 0 / 0;
-       /** Used to match leading and trailing whitespace. */
-
-       var reTrim = /^\s+|\s+$/g;
        /** Used to detect bad signed hexadecimal string values. */
 
        var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
            return value === 0 ? value : +value;
          }
 
-         value = value.replace(reTrim, '');
+         value = baseTrim(value);
          var isBinary = reIsBinary.test(value);
          return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;
        }
              var options = {
                skipSeen: true
              };
-             return parseXML(xml, function (err, results) {
-               if (err) {
-                 return callback(err);
-               } else {
-                 return callback(undefined, results[0]);
-               }
-             }, options);
-           }
-         },
-         // Load the details of the logged-in user
-         // GET /api/0.6/user/details
-         userDetails: function userDetails(callback) {
-           if (_userDetails) {
-             // retrieve cached
-             return callback(undefined, _userDetails);
-           }
-
-           oauth.xhr({
-             method: 'GET',
-             path: '/api/0.6/user/details'
-           }, wrapcb(this, done, _connectionID));
-
-           function done(err, xml) {
-             if (err) {
-               return callback(err);
-             }
-
-             var options = {
-               skipSeen: false
-             };
-             return parseXML(xml, function (err, results) {
-               if (err) {
-                 return callback(err);
-               } else {
-                 _userDetails = results[0];
-                 return callback(undefined, _userDetails);
-               }
-             }, options);
-           }
-         },
-         // Load previous changesets for the logged in user
-         // GET /api/0.6/changesets?user=#id
-         userChangesets: function userChangesets(callback) {
-           if (_userChangesets) {
-             // retrieve cached
-             return callback(undefined, _userChangesets);
-           }
-
-           this.userDetails(wrapcb(this, gotDetails, _connectionID));
-
-           function gotDetails(err, user) {
-             if (err) {
-               return callback(err);
-             }
-
-             oauth.xhr({
-               method: 'GET',
-               path: '/api/0.6/changesets?user=' + user.id
-             }, wrapcb(this, done, _connectionID));
-           }
-
-           function done(err, xml) {
-             if (err) {
-               return callback(err);
-             }
-
-             _userChangesets = Array.prototype.map.call(xml.getElementsByTagName('changeset'), function (changeset) {
-               return {
-                 tags: getTags(changeset)
-               };
-             }).filter(function (changeset) {
-               var comment = changeset.tags.comment;
-               return comment && comment !== '';
-             });
-             return callback(undefined, _userChangesets);
-           }
-         },
-         // Fetch the status of the OSM API
-         // GET /api/capabilities
-         status: function status(callback) {
-           var url = urlroot + '/api/capabilities';
-           var errback = wrapcb(this, done, _connectionID);
-           d3_xml(url).then(function (data) {
-             errback(null, data);
-           })["catch"](function (err) {
-             errback(err.message);
-           });
-
-           function done(err, xml) {
-             if (err) {
-               // the status is null if no response could be retrieved
-               return callback(err, null);
-             } // update blocklists
-
-
-             var elements = xml.getElementsByTagName('blacklist');
-             var regexes = [];
-
-             for (var i = 0; i < elements.length; i++) {
-               var regexString = elements[i].getAttribute('regex'); // needs unencode?
-
-               if (regexString) {
-                 try {
-                   var regex = new RegExp(regexString);
-                   regexes.push(regex);
-                 } catch (e) {
-                   /* noop */
-                 }
-               }
-             }
-
-             if (regexes.length) {
-               _imageryBlocklists = regexes;
-             }
-
-             if (_rateLimitError) {
-               return callback(_rateLimitError, 'rateLimited');
-             } else {
-               var waynodes = xml.getElementsByTagName('waynodes');
-               var maxWayNodes = waynodes.length && parseInt(waynodes[0].getAttribute('maximum'), 10);
-               if (maxWayNodes && isFinite(maxWayNodes)) _maxWayNodes = maxWayNodes;
-               var apiStatus = xml.getElementsByTagName('status');
-               var val = apiStatus[0].getAttribute('api');
-               return callback(undefined, val);
-             }
-           }
-         },
-         // Calls `status` and dispatches an `apiStatusChange` event if the returned
-         // status differs from the cached status.
-         reloadApiStatus: function reloadApiStatus() {
-           // throttle to avoid unnecessary API calls
-           if (!this.throttledReloadApiStatus) {
-             var that = this;
-             this.throttledReloadApiStatus = throttle(function () {
-               that.status(function (err, status) {
-                 if (status !== _cachedApiStatus) {
-                   _cachedApiStatus = status;
-                   dispatch$6.call('apiStatusChange', that, err, status);
-                 }
-               });
-             }, 500);
-           }
-
-           this.throttledReloadApiStatus();
-         },
-         // Returns the maximum number of nodes a single way can have
-         maxWayNodes: function maxWayNodes() {
-           return _maxWayNodes;
-         },
-         // Load data (entities) from the API in tiles
-         // GET /api/0.6/map?bbox=
-         loadTiles: function loadTiles(projection, callback) {
-           if (_off) return; // determine the needed tiles to cover the view
-
-           var tiles = tiler$5.zoomExtent([_tileZoom$3, _tileZoom$3]).getTiles(projection); // abort inflight requests that are no longer needed
-
-           var hadRequests = hasInflightRequests(_tileCache);
-           abortUnwantedRequests$3(_tileCache, tiles);
-
-           if (hadRequests && !hasInflightRequests(_tileCache)) {
-             dispatch$6.call('loaded'); // stop the spinner
-           } // issue new requests..
-
-
-           tiles.forEach(function (tile) {
-             this.loadTile(tile, callback);
-           }, this);
-         },
-         // Load a single data tile
-         // GET /api/0.6/map?bbox=
-         loadTile: function loadTile(tile, callback) {
-           if (_off) return;
-           if (_tileCache.loaded[tile.id] || _tileCache.inflight[tile.id]) return;
-
-           if (!hasInflightRequests(_tileCache)) {
-             dispatch$6.call('loading'); // start the spinner
-           }
-
-           var path = '/api/0.6/map.json?bbox=';
-           var options = {
-             skipSeen: true
-           };
-           _tileCache.inflight[tile.id] = this.loadFromAPI(path + tile.extent.toParam(), tileCallback, options);
-
-           function tileCallback(err, parsed) {
-             delete _tileCache.inflight[tile.id];
-
-             if (!err) {
-               delete _tileCache.toLoad[tile.id];
-               _tileCache.loaded[tile.id] = true;
-               var bbox = tile.extent.bbox();
-               bbox.id = tile.id;
-
-               _tileCache.rtree.insert(bbox);
-             }
-
-             if (callback) {
-               callback(err, Object.assign({
-                 data: parsed
-               }, tile));
-             }
-
-             if (!hasInflightRequests(_tileCache)) {
-               dispatch$6.call('loaded'); // stop the spinner
-             }
-           }
-         },
-         isDataLoaded: function isDataLoaded(loc) {
-           var bbox = {
-             minX: loc[0],
-             minY: loc[1],
-             maxX: loc[0],
-             maxY: loc[1]
-           };
-           return _tileCache.rtree.collides(bbox);
-         },
-         // load the tile that covers the given `loc`
-         loadTileAtLoc: function loadTileAtLoc(loc, callback) {
-           // Back off if the toLoad queue is filling up.. re #6417
-           // (Currently `loadTileAtLoc` requests are considered low priority - used by operations to
-           // let users safely edit geometries which extend to unloaded tiles.  We can drop some.)
-           if (Object.keys(_tileCache.toLoad).length > 50) return;
-           var k = geoZoomToScale(_tileZoom$3 + 1);
-           var offset = geoRawMercator().scale(k)(loc);
-           var projection = geoRawMercator().transform({
-             k: k,
-             x: -offset[0],
-             y: -offset[1]
-           });
-           var tiles = tiler$5.zoomExtent([_tileZoom$3, _tileZoom$3]).getTiles(projection);
-           tiles.forEach(function (tile) {
-             if (_tileCache.toLoad[tile.id] || _tileCache.loaded[tile.id] || _tileCache.inflight[tile.id]) return;
-             _tileCache.toLoad[tile.id] = true;
-             this.loadTile(tile, callback);
-           }, this);
-         },
-         // Load notes from the API in tiles
-         // GET /api/0.6/notes?bbox=
-         loadNotes: function loadNotes(projection, noteOptions) {
-           noteOptions = Object.assign({
-             limit: 10000,
-             closed: 7
-           }, noteOptions);
-           if (_off) return;
-           var that = this;
-           var path = '/api/0.6/notes?limit=' + noteOptions.limit + '&closed=' + noteOptions.closed + '&bbox=';
-
-           var throttleLoadUsers = throttle(function () {
-             var uids = Object.keys(_userCache.toLoad);
-             if (!uids.length) return;
-             that.loadUsers(uids, function () {}); // eagerly load user details
-           }, 750); // determine the needed tiles to cover the view
-
-
-           var tiles = tiler$5.zoomExtent([_noteZoom, _noteZoom]).getTiles(projection); // abort inflight requests that are no longer needed
-
-           abortUnwantedRequests$3(_noteCache, tiles); // issue new requests..
-
-           tiles.forEach(function (tile) {
-             if (_noteCache.loaded[tile.id] || _noteCache.inflight[tile.id]) return;
-             var options = {
-               skipSeen: false
-             };
-             _noteCache.inflight[tile.id] = that.loadFromAPI(path + tile.extent.toParam(), function (err) {
-               delete _noteCache.inflight[tile.id];
-
-               if (!err) {
-                 _noteCache.loaded[tile.id] = true;
-               }
-
-               throttleLoadUsers();
-               dispatch$6.call('loadedNotes');
-             }, options);
-           });
-         },
-         // Create a note
-         // POST /api/0.6/notes?params
-         postNoteCreate: function postNoteCreate(note, callback) {
-           if (!this.authenticated()) {
-             return callback({
-               message: 'Not Authenticated',
-               status: -3
-             }, note);
-           }
-
-           if (_noteCache.inflightPost[note.id]) {
-             return callback({
-               message: 'Note update already inflight',
-               status: -2
-             }, note);
-           }
-
-           if (!note.loc[0] || !note.loc[1] || !note.newComment) return; // location & description required
-
-           var comment = note.newComment;
-
-           if (note.newCategory && note.newCategory !== 'None') {
-             comment += ' #' + note.newCategory;
-           }
-
-           var path = '/api/0.6/notes?' + utilQsString({
-             lon: note.loc[0],
-             lat: note.loc[1],
-             text: comment
-           });
-           _noteCache.inflightPost[note.id] = oauth.xhr({
-             method: 'POST',
-             path: path
-           }, wrapcb(this, done, _connectionID));
-
-           function done(err, xml) {
-             delete _noteCache.inflightPost[note.id];
-
-             if (err) {
-               return callback(err);
-             } // we get the updated note back, remove from caches and reparse..
-
-
-             this.removeNote(note);
-             var options = {
-               skipSeen: false
-             };
-             return parseXML(xml, function (err, results) {
-               if (err) {
-                 return callback(err);
-               } else {
-                 return callback(undefined, results[0]);
-               }
-             }, options);
-           }
-         },
-         // Update a note
-         // POST /api/0.6/notes/#id/comment?text=comment
-         // POST /api/0.6/notes/#id/close?text=comment
-         // POST /api/0.6/notes/#id/reopen?text=comment
-         postNoteUpdate: function postNoteUpdate(note, newStatus, callback) {
-           if (!this.authenticated()) {
-             return callback({
-               message: 'Not Authenticated',
-               status: -3
-             }, note);
-           }
-
-           if (_noteCache.inflightPost[note.id]) {
-             return callback({
-               message: 'Note update already inflight',
-               status: -2
-             }, note);
-           }
-
-           var action;
-
-           if (note.status !== 'closed' && newStatus === 'closed') {
-             action = 'close';
-           } else if (note.status !== 'open' && newStatus === 'open') {
-             action = 'reopen';
-           } else {
-             action = 'comment';
-             if (!note.newComment) return; // when commenting, comment required
-           }
-
-           var path = '/api/0.6/notes/' + note.id + '/' + action;
-
-           if (note.newComment) {
-             path += '?' + utilQsString({
-               text: note.newComment
-             });
-           }
-
-           _noteCache.inflightPost[note.id] = oauth.xhr({
-             method: 'POST',
-             path: path
-           }, wrapcb(this, done, _connectionID));
-
-           function done(err, xml) {
-             delete _noteCache.inflightPost[note.id];
-
-             if (err) {
-               return callback(err);
-             } // we get the updated note back, remove from caches and reparse..
-
-
-             this.removeNote(note); // update closed note cache - used to populate `closed:note` changeset tag
-
-             if (action === 'close') {
-               _noteCache.closed[note.id] = true;
-             } else if (action === 'reopen') {
-               delete _noteCache.closed[note.id];
-             }
-
-             var options = {
-               skipSeen: false
-             };
-             return parseXML(xml, function (err, results) {
-               if (err) {
-                 return callback(err);
-               } else {
-                 return callback(undefined, results[0]);
-               }
-             }, options);
-           }
-         },
-         "switch": function _switch(options) {
-           urlroot = options.urlroot;
-           oauth.options(Object.assign({
-             url: urlroot,
-             loading: authLoading,
-             done: authDone
-           }, options));
-           this.reset();
-           this.userChangesets(function () {}); // eagerly load user details/changesets
-
-           dispatch$6.call('change');
-           return this;
-         },
-         toggle: function toggle(val) {
-           _off = !val;
-           return this;
-         },
-         isChangesetInflight: function isChangesetInflight() {
-           return !!_changeset.inflight;
-         },
-         // get/set cached data
-         // This is used to save/restore the state when entering/exiting the walkthrough
-         // Also used for testing purposes.
-         caches: function caches(obj) {
-           function cloneCache(source) {
-             var target = {};
-             Object.keys(source).forEach(function (k) {
-               if (k === 'rtree') {
-                 target.rtree = new RBush().fromJSON(source.rtree.toJSON()); // clone rbush
-               } else if (k === 'note') {
-                 target.note = {};
-                 Object.keys(source.note).forEach(function (id) {
-                   target.note[id] = osmNote(source.note[id]); // copy notes
-                 });
-               } else {
-                 target[k] = JSON.parse(JSON.stringify(source[k])); // clone deep
-               }
-             });
-             return target;
-           }
-
-           if (!arguments.length) {
-             return {
-               tile: cloneCache(_tileCache),
-               note: cloneCache(_noteCache),
-               user: cloneCache(_userCache)
-             };
-           } // access caches directly for testing (e.g., loading notes rtree)
-
-
-           if (obj === 'get') {
-             return {
-               tile: _tileCache,
-               note: _noteCache,
-               user: _userCache
-             };
-           }
-
-           if (obj.tile) {
-             _tileCache = obj.tile;
-             _tileCache.inflight = {};
-           }
-
-           if (obj.note) {
-             _noteCache = obj.note;
-             _noteCache.inflight = {};
-             _noteCache.inflightPost = {};
-           }
-
-           if (obj.user) {
-             _userCache = obj.user;
-           }
-
-           return this;
-         },
-         logout: function logout() {
-           _userChangesets = undefined;
-           _userDetails = undefined;
-           oauth.logout();
-           dispatch$6.call('change');
-           return this;
-         },
-         authenticated: function authenticated() {
-           return oauth.authenticated();
-         },
-         authenticate: function authenticate(callback) {
-           var that = this;
-           var cid = _connectionID;
-           _userChangesets = undefined;
-           _userDetails = undefined;
-
-           function done(err, res) {
-             if (err) {
-               if (callback) callback(err);
-               return;
-             }
-
-             if (that.getConnectionId() !== cid) {
-               if (callback) callback({
-                 message: 'Connection Switched',
-                 status: -1
-               });
-               return;
-             }
-
-             _rateLimitError = undefined;
-             dispatch$6.call('change');
-             if (callback) callback(err, res);
-             that.userChangesets(function () {}); // eagerly load user details/changesets
-           }
-
-           return oauth.authenticate(done);
-         },
-         imageryBlocklists: function imageryBlocklists() {
-           return _imageryBlocklists;
-         },
-         tileZoom: function tileZoom(val) {
-           if (!arguments.length) return _tileZoom$3;
-           _tileZoom$3 = val;
-           return this;
-         },
-         // get all cached notes covering the viewport
-         notes: function notes(projection) {
-           var viewport = projection.clipExtent();
-           var min = [viewport[0][0], viewport[1][1]];
-           var max = [viewport[1][0], viewport[0][1]];
-           var bbox = geoExtent(projection.invert(min), projection.invert(max)).bbox();
-           return _noteCache.rtree.search(bbox).map(function (d) {
-             return d.data;
-           });
-         },
-         // get a single note from the cache
-         getNote: function getNote(id) {
-           return _noteCache.note[id];
-         },
-         // remove a single note from the cache
-         removeNote: function removeNote(note) {
-           if (!(note instanceof osmNote) || !note.id) return;
-           delete _noteCache.note[note.id];
-           updateRtree$3(encodeNoteRtree(note), false); // false = remove
-         },
-         // replace a single note in the cache
-         replaceNote: function replaceNote(note) {
-           if (!(note instanceof osmNote) || !note.id) return;
-           _noteCache.note[note.id] = note;
-           updateRtree$3(encodeNoteRtree(note), true); // true = replace
-
-           return note;
-         },
-         // Get an array of note IDs closed during this session.
-         // Used to populate `closed:note` changeset tag
-         getClosedIDs: function getClosedIDs() {
-           return Object.keys(_noteCache.closed).sort();
-         }
-       };
-
-       var _apibase = 'https://wiki.openstreetmap.org/w/api.php';
-       var _inflight$1 = {};
-       var _wikibaseCache = {};
-       var _localeIDs = {
-         en: false
-       };
-
-       var debouncedRequest = debounce(request, 500, {
-         leading: false
-       });
-
-       function request(url, callback) {
-         if (_inflight$1[url]) return;
-         var controller = new AbortController();
-         _inflight$1[url] = controller;
-         d3_json(url, {
-           signal: controller.signal
-         }).then(function (result) {
-           delete _inflight$1[url];
-           if (callback) callback(null, result);
-         })["catch"](function (err) {
-           delete _inflight$1[url];
-           if (err.name === 'AbortError') return;
-           if (callback) callback(err.message);
-         });
-       }
-
-       var serviceOsmWikibase = {
-         init: function init() {
-           _inflight$1 = {};
-           _wikibaseCache = {};
-           _localeIDs = {};
-         },
-         reset: function reset() {
-           Object.values(_inflight$1).forEach(function (controller) {
-             controller.abort();
-           });
-           _inflight$1 = {};
-         },
-
-         /**
-          * Get the best value for the property, or undefined if not found
-          * @param entity object from wikibase
-          * @param property string e.g. 'P4' for image
-          * @param langCode string e.g. 'fr' for French
-          */
-         claimToValue: function claimToValue(entity, property, langCode) {
-           if (!entity.claims[property]) return undefined;
-           var locale = _localeIDs[langCode];
-           var preferredPick, localePick;
-           entity.claims[property].forEach(function (stmt) {
-             // If exists, use value limited to the needed language (has a qualifier P26 = locale)
-             // Or if not found, use the first value with the "preferred" rank
-             if (!preferredPick && stmt.rank === 'preferred') {
-               preferredPick = stmt;
-             }
-
-             if (locale && stmt.qualifiers && stmt.qualifiers.P26 && stmt.qualifiers.P26[0].datavalue.value.id === locale) {
-               localePick = stmt;
-             }
-           });
-           var result = localePick || preferredPick;
-
-           if (result) {
-             var datavalue = result.mainsnak.datavalue;
-             return datavalue.type === 'wikibase-entityid' ? datavalue.value.id : datavalue.value;
-           } else {
-             return undefined;
-           }
-         },
-
-         /**
-          * Convert monolingual property into a key-value object (language -> value)
-          * @param entity object from wikibase
-          * @param property string e.g. 'P31' for monolingual wiki page title
-          */
-         monolingualClaimToValueObj: function monolingualClaimToValueObj(entity, property) {
-           if (!entity || !entity.claims[property]) return undefined;
-           return entity.claims[property].reduce(function (acc, obj) {
-             var value = obj.mainsnak.datavalue.value;
-             acc[value.language] = value.text;
-             return acc;
-           }, {});
-         },
-         toSitelink: function toSitelink(key, value) {
-           var result = value ? 'Tag:' + key + '=' + value : 'Key:' + key;
-           return result.replace(/_/g, ' ').trim();
-         },
-         //
-         // Pass params object of the form:
-         // {
-         //   key: 'string',
-         //   value: 'string',
-         //   langCode: 'string'
-         // }
-         //
-         getEntity: function getEntity(params, callback) {
-           var doRequest = params.debounce ? debouncedRequest : request;
-           var that = this;
-           var titles = [];
-           var result = {};
-           var rtypeSitelink = params.key === 'type' && params.value ? ('Relation:' + params.value).replace(/_/g, ' ').trim() : false;
-           var keySitelink = params.key ? this.toSitelink(params.key) : false;
-           var tagSitelink = params.key && params.value ? this.toSitelink(params.key, params.value) : false;
-           var localeSitelink;
-
-           if (params.langCodes) {
-             params.langCodes.forEach(function (langCode) {
-               if (_localeIDs[langCode] === undefined) {
-                 // If this is the first time we are asking about this locale,
-                 // fetch corresponding entity (if it exists), and cache it.
-                 // If there is no such entry, cache `false` value to avoid re-requesting it.
-                 localeSitelink = ('Locale:' + langCode).replace(/_/g, ' ').trim();
-                 titles.push(localeSitelink);
-               }
-             });
-           }
-
-           if (rtypeSitelink) {
-             if (_wikibaseCache[rtypeSitelink]) {
-               result.rtype = _wikibaseCache[rtypeSitelink];
-             } else {
-               titles.push(rtypeSitelink);
-             }
-           }
-
-           if (keySitelink) {
-             if (_wikibaseCache[keySitelink]) {
-               result.key = _wikibaseCache[keySitelink];
-             } else {
-               titles.push(keySitelink);
-             }
-           }
-
-           if (tagSitelink) {
-             if (_wikibaseCache[tagSitelink]) {
-               result.tag = _wikibaseCache[tagSitelink];
-             } else {
-               titles.push(tagSitelink);
-             }
-           }
-
-           if (!titles.length) {
-             // Nothing to do, we already had everything in the cache
-             return callback(null, result);
-           } // Requesting just the user language code
-           // If backend recognizes the code, it will perform proper fallbacks,
-           // and the result will contain the requested code. If not, all values are returned:
-           // {"zh-tw":{"value":"...","language":"zh-tw","source-language":"zh-hant"}
-           // {"pt-br":{"value":"...","language":"pt","for-language":"pt-br"}}
-
-
-           var obj = {
-             action: 'wbgetentities',
-             sites: 'wiki',
-             titles: titles.join('|'),
-             languages: params.langCodes.join('|'),
-             languagefallback: 1,
-             origin: '*',
-             format: 'json' // There is an MW Wikibase API bug https://phabricator.wikimedia.org/T212069
-             // We shouldn't use v1 until it gets fixed, but should switch to it afterwards
-             // formatversion: 2,
-
-           };
-           var url = _apibase + '?' + utilQsString(obj);
-           doRequest(url, function (err, d) {
-             if (err) {
-               callback(err);
-             } else if (!d.success || d.error) {
-               callback(d.error.messages.map(function (v) {
-                 return v.html['*'];
-               }).join('<br>'));
-             } else {
-               var localeID = false;
-               Object.values(d.entities).forEach(function (res) {
-                 if (res.missing !== '') {
-                   var title = res.sitelinks.wiki.title;
-
-                   if (title === rtypeSitelink) {
-                     _wikibaseCache[rtypeSitelink] = res;
-                     result.rtype = res;
-                   } else if (title === keySitelink) {
-                     _wikibaseCache[keySitelink] = res;
-                     result.key = res;
-                   } else if (title === tagSitelink) {
-                     _wikibaseCache[tagSitelink] = res;
-                     result.tag = res;
-                   } else if (title === localeSitelink) {
-                     localeID = res.id;
-                   } else {
-                     console.log('Unexpected title ' + title); // eslint-disable-line no-console
-                   }
-                 }
-               });
-
-               if (localeSitelink) {
-                 // If locale ID is not found, store false to prevent repeated queries
-                 that.addLocale(params.langCodes[0], localeID);
-               }
-
-               callback(null, result);
-             }
-           });
-         },
-         //
-         // Pass params object of the form:
-         // {
-         //   key: 'string',     // required
-         //   value: 'string'    // optional
-         // }
-         //
-         // Get an result object used to display tag documentation
-         // {
-         //   title:        'string',
-         //   description:  'string',
-         //   editURL:      'string',
-         //   imageURL:     'string',
-         //   wiki:         { title: 'string', text: 'string', url: 'string' }
-         // }
-         //
-         getDocs: function getDocs(params, callback) {
-           var that = this;
-           var langCodes = _mainLocalizer.localeCodes().map(function (code) {
-             return code.toLowerCase();
-           });
-           params.langCodes = langCodes;
-           this.getEntity(params, function (err, data) {
-             if (err) {
-               callback(err);
-               return;
-             }
-
-             var entity = data.rtype || data.tag || data.key;
-
-             if (!entity) {
-               callback('No entity');
-               return;
-             }
-
-             var i;
-             var description;
-
-             for (i in langCodes) {
-               var _code = langCodes[i];
-
-               if (entity.descriptions[_code] && entity.descriptions[_code].language === _code) {
-                 description = entity.descriptions[_code];
-                 break;
-               }
-             }
-
-             if (!description && Object.values(entity.descriptions).length) description = Object.values(entity.descriptions)[0]; // prepare result
-
-             var result = {
-               title: entity.title,
-               description: description ? description.value : '',
-               descriptionLocaleCode: description ? description.language : '',
-               editURL: 'https://wiki.openstreetmap.org/wiki/' + entity.title
-             }; // add image
-
-             if (entity.claims) {
-               var imageroot;
-               var image = that.claimToValue(entity, 'P4', langCodes[0]);
-
-               if (image) {
-                 imageroot = 'https://commons.wikimedia.org/w/index.php';
-               } else {
-                 image = that.claimToValue(entity, 'P28', langCodes[0]);
-
-                 if (image) {
-                   imageroot = 'https://wiki.openstreetmap.org/w/index.php';
-                 }
-               }
-
-               if (imageroot && image) {
-                 result.imageURL = imageroot + '?' + utilQsString({
-                   title: 'Special:Redirect/file/' + image,
-                   width: 400
-                 });
-               }
-             } // Try to get a wiki page from tag data item first, followed by the corresponding key data item.
-             // If neither tag nor key data item contain a wiki page in the needed language nor English,
-             // get the first found wiki page from either the tag or the key item.
-
-
-             var rtypeWiki = that.monolingualClaimToValueObj(data.rtype, 'P31');
-             var tagWiki = that.monolingualClaimToValueObj(data.tag, 'P31');
-             var keyWiki = that.monolingualClaimToValueObj(data.key, 'P31');
-             var wikis = [rtypeWiki, tagWiki, keyWiki];
-
-             for (i in wikis) {
-               var wiki = wikis[i];
-
-               for (var j in langCodes) {
-                 var code = langCodes[j];
-                 var referenceId = langCodes[0].split('-')[0] !== 'en' && code.split('-')[0] === 'en' ? 'inspector.wiki_en_reference' : 'inspector.wiki_reference';
-                 var info = getWikiInfo(wiki, code, referenceId);
-
-                 if (info) {
-                   result.wiki = info;
-                   break;
-                 }
-               }
-
-               if (result.wiki) break;
-             }
-
-             callback(null, result); // Helper method to get wiki info if a given language exists
-
-             function getWikiInfo(wiki, langCode, tKey) {
-               if (wiki && wiki[langCode]) {
-                 return {
-                   title: wiki[langCode],
-                   text: tKey,
-                   url: 'https://wiki.openstreetmap.org/wiki/' + wiki[langCode]
-                 };
-               }
-             }
-           });
-         },
-         addLocale: function addLocale(langCode, qid) {
-           // Makes it easier to unit test
-           _localeIDs[langCode] = qid;
-         },
-         apibase: function apibase(val) {
-           if (!arguments.length) return _apibase;
-           _apibase = val;
-           return this;
-         }
-       };
-
-       var jsonpCache = {};
-       window.jsonpCache = jsonpCache;
-       function jsonpRequest(url, callback) {
-         var request = {
-           abort: function abort() {}
-         };
-
-         if (window.JSONP_FIX) {
-           if (window.JSONP_DELAY === 0) {
-             callback(window.JSONP_FIX);
-           } else {
-             var t = window.setTimeout(function () {
-               callback(window.JSONP_FIX);
-             }, window.JSONP_DELAY || 0);
-
-             request.abort = function () {
-               window.clearTimeout(t);
-             };
+             return parseXML(xml, function (err, results) {
+               if (err) {
+                 return callback(err);
+               } else {
+                 return callback(undefined, results[0]);
+               }
+             }, options);
+           }
+         },
+         // Load the details of the logged-in user
+         // GET /api/0.6/user/details
+         userDetails: function userDetails(callback) {
+           if (_userDetails) {
+             // retrieve cached
+             return callback(undefined, _userDetails);
            }
 
-           return request;
-         }
+           oauth.xhr({
+             method: 'GET',
+             path: '/api/0.6/user/details'
+           }, wrapcb(this, done, _connectionID));
 
-         function rand() {
-           var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
-           var c = '';
-           var i = -1;
+           function done(err, xml) {
+             if (err) {
+               return callback(err);
+             }
 
-           while (++i < 15) {
-             c += chars.charAt(Math.floor(Math.random() * 52));
+             var options = {
+               skipSeen: false
+             };
+             return parseXML(xml, function (err, results) {
+               if (err) {
+                 return callback(err);
+               } else {
+                 _userDetails = results[0];
+                 return callback(undefined, _userDetails);
+               }
+             }, options);
+           }
+         },
+         // Load previous changesets for the logged in user
+         // GET /api/0.6/changesets?user=#id
+         userChangesets: function userChangesets(callback) {
+           if (_userChangesets) {
+             // retrieve cached
+             return callback(undefined, _userChangesets);
            }
 
-           return c;
-         }
-
-         function create(url) {
-           var e = url.match(/callback=(\w+)/);
-           var c = e ? e[1] : rand();
+           this.userDetails(wrapcb(this, gotDetails, _connectionID));
 
-           jsonpCache[c] = function (data) {
-             if (jsonpCache[c]) {
-               callback(data);
+           function gotDetails(err, user) {
+             if (err) {
+               return callback(err);
              }
 
-             finalize();
-           };
-
-           function finalize() {
-             delete jsonpCache[c];
-             script.remove();
+             oauth.xhr({
+               method: 'GET',
+               path: '/api/0.6/changesets?user=' + user.id
+             }, wrapcb(this, done, _connectionID));
            }
 
-           request.abort = finalize;
-           return 'jsonpCache.' + c;
-         }
-
-         var cb = create(url);
-         var script = select('head').append('script').attr('type', 'text/javascript').attr('src', url.replace(/(\{|%7B)callback(\}|%7D)/, cb));
-         return request;
-       }
-
-       var bubbleApi = 'https://dev.virtualearth.net/mapcontrol/HumanScaleServices/GetBubbles.ashx?';
-       var streetsideImagesApi = 'https://t.ssl.ak.tiles.virtualearth.net/tiles/';
-       var bubbleAppKey = 'AuftgJsO0Xs8Ts4M1xZUQJQXJNsvmh3IV8DkNieCiy3tCwCUMq76-WpkrBtNAuEm';
-       var pannellumViewerCSS = 'pannellum-streetside/pannellum.css';
-       var pannellumViewerJS = 'pannellum-streetside/pannellum.js';
-       var maxResults$2 = 2000;
-       var tileZoom$2 = 16.5;
-       var tiler$6 = utilTiler().zoomExtent([tileZoom$2, tileZoom$2]).skipNullIsland(true);
-       var dispatch$7 = dispatch('loadedImages', 'viewerChanged');
-       var minHfov = 10; // zoom in degrees:  20, 10, 5
+           function done(err, xml) {
+             if (err) {
+               return callback(err);
+             }
 
-       var maxHfov = 90; // zoom out degrees
+             _userChangesets = Array.prototype.map.call(xml.getElementsByTagName('changeset'), function (changeset) {
+               return {
+                 tags: getTags(changeset)
+               };
+             }).filter(function (changeset) {
+               var comment = changeset.tags.comment;
+               return comment && comment !== '';
+             });
+             return callback(undefined, _userChangesets);
+           }
+         },
+         // Fetch the status of the OSM API
+         // GET /api/capabilities
+         status: function status(callback) {
+           var url = urlroot + '/api/capabilities';
+           var errback = wrapcb(this, done, _connectionID);
+           d3_xml(url).then(function (data) {
+             errback(null, data);
+           })["catch"](function (err) {
+             errback(err.message);
+           });
 
-       var defaultHfov = 45;
-       var _hires = false;
-       var _resolution = 512; // higher numbers are slower - 512, 1024, 2048, 4096
+           function done(err, xml) {
+             if (err) {
+               // the status is null if no response could be retrieved
+               return callback(err, null);
+             } // update blocklists
 
-       var _currScene = 0;
 
-       var _ssCache;
+             var elements = xml.getElementsByTagName('blacklist');
+             var regexes = [];
 
-       var _pannellumViewer;
+             for (var i = 0; i < elements.length; i++) {
+               var regexString = elements[i].getAttribute('regex'); // needs unencode?
 
-       var _sceneOptions = {
-         showFullscreenCtrl: false,
-         autoLoad: true,
-         compass: true,
-         yaw: 0,
-         minHfov: minHfov,
-         maxHfov: maxHfov,
-         hfov: defaultHfov,
-         type: 'cubemap',
-         cubeMap: []
-       };
+               if (regexString) {
+                 try {
+                   var regex = new RegExp(regexString);
+                   regexes.push(regex);
+                 } catch (e) {
+                   /* noop */
+                 }
+               }
+             }
 
-       var _loadViewerPromise$2;
-       /**
-        * abortRequest().
-        */
+             if (regexes.length) {
+               _imageryBlocklists = regexes;
+             }
 
+             if (_rateLimitError) {
+               return callback(_rateLimitError, 'rateLimited');
+             } else {
+               var waynodes = xml.getElementsByTagName('waynodes');
+               var maxWayNodes = waynodes.length && parseInt(waynodes[0].getAttribute('maximum'), 10);
+               if (maxWayNodes && isFinite(maxWayNodes)) _maxWayNodes = maxWayNodes;
+               var apiStatus = xml.getElementsByTagName('status');
+               var val = apiStatus[0].getAttribute('api');
+               return callback(undefined, val);
+             }
+           }
+         },
+         // Calls `status` and dispatches an `apiStatusChange` event if the returned
+         // status differs from the cached status.
+         reloadApiStatus: function reloadApiStatus() {
+           // throttle to avoid unnecessary API calls
+           if (!this.throttledReloadApiStatus) {
+             var that = this;
+             this.throttledReloadApiStatus = throttle(function () {
+               that.status(function (err, status) {
+                 if (status !== _cachedApiStatus) {
+                   _cachedApiStatus = status;
+                   dispatch$6.call('apiStatusChange', that, err, status);
+                 }
+               });
+             }, 500);
+           }
 
-       function abortRequest$6(i) {
-         i.abort();
-       }
-       /**
-        * localeTimeStamp().
-        */
+           this.throttledReloadApiStatus();
+         },
+         // Returns the maximum number of nodes a single way can have
+         maxWayNodes: function maxWayNodes() {
+           return _maxWayNodes;
+         },
+         // Load data (entities) from the API in tiles
+         // GET /api/0.6/map?bbox=
+         loadTiles: function loadTiles(projection, callback) {
+           if (_off) return; // determine the needed tiles to cover the view
 
+           var tiles = tiler$5.zoomExtent([_tileZoom$3, _tileZoom$3]).getTiles(projection); // abort inflight requests that are no longer needed
 
-       function localeTimestamp(s) {
-         if (!s) return null;
-         var options = {
-           day: 'numeric',
-           month: 'short',
-           year: 'numeric'
-         };
-         var d = new Date(s);
-         if (isNaN(d.getTime())) return null;
-         return d.toLocaleString(_mainLocalizer.localeCode(), options);
-       }
-       /**
-        * loadTiles() wraps the process of generating tiles and then fetching image points for each tile.
-        */
+           var hadRequests = hasInflightRequests(_tileCache);
+           abortUnwantedRequests$3(_tileCache, tiles);
 
+           if (hadRequests && !hasInflightRequests(_tileCache)) {
+             dispatch$6.call('loaded'); // stop the spinner
+           } // issue new requests..
 
-       function loadTiles$2(which, url, projection, margin) {
-         var tiles = tiler$6.margin(margin).getTiles(projection); // abort inflight requests that are no longer needed
 
-         var cache = _ssCache[which];
-         Object.keys(cache.inflight).forEach(function (k) {
-           var wanted = tiles.find(function (tile) {
-             return k.indexOf(tile.id + ',') === 0;
-           });
+           tiles.forEach(function (tile) {
+             this.loadTile(tile, callback);
+           }, this);
+         },
+         // Load a single data tile
+         // GET /api/0.6/map?bbox=
+         loadTile: function loadTile(tile, callback) {
+           if (_off) return;
+           if (_tileCache.loaded[tile.id] || _tileCache.inflight[tile.id]) return;
 
-           if (!wanted) {
-             abortRequest$6(cache.inflight[k]);
-             delete cache.inflight[k];
+           if (!hasInflightRequests(_tileCache)) {
+             dispatch$6.call('loading'); // start the spinner
            }
-         });
-         tiles.forEach(function (tile) {
-           return loadNextTilePage$2(which, url, tile);
-         });
-       }
-       /**
-        * loadNextTilePage() load data for the next tile page in line.
-        */
 
+           var path = '/api/0.6/map.json?bbox=';
+           var options = {
+             skipSeen: true
+           };
+           _tileCache.inflight[tile.id] = this.loadFromAPI(path + tile.extent.toParam(), tileCallback, options);
 
-       function loadNextTilePage$2(which, url, tile) {
-         var cache = _ssCache[which];
-         var nextPage = cache.nextPage[tile.id] || 0;
-         var id = tile.id + ',' + String(nextPage);
-         if (cache.loaded[id] || cache.inflight[id]) return;
-         cache.inflight[id] = getBubbles(url, tile, function (bubbles) {
-           cache.loaded[id] = true;
-           delete cache.inflight[id];
-           if (!bubbles) return; // [].shift() removes the first element, some statistics info, not a bubble point
-
-           bubbles.shift();
-           var features = bubbles.map(function (bubble) {
-             if (cache.points[bubble.id]) return null; // skip duplicates
+           function tileCallback(err, parsed) {
+             delete _tileCache.inflight[tile.id];
 
-             var loc = [bubble.lo, bubble.la];
-             var d = {
-               loc: loc,
-               key: bubble.id,
-               ca: bubble.he,
-               captured_at: bubble.cd,
-               captured_by: 'microsoft',
-               // nbn: bubble.nbn,
-               // pbn: bubble.pbn,
-               // ad: bubble.ad,
-               // rn: bubble.rn,
-               pr: bubble.pr,
-               // previous
-               ne: bubble.ne,
-               // next
-               pano: true,
-               sequenceKey: null
-             };
-             cache.points[bubble.id] = d; // a sequence starts here
+             if (!err) {
+               delete _tileCache.toLoad[tile.id];
+               _tileCache.loaded[tile.id] = true;
+               var bbox = tile.extent.bbox();
+               bbox.id = tile.id;
 
-             if (bubble.pr === undefined) {
-               cache.leaders.push(bubble.id);
+               _tileCache.rtree.insert(bbox);
              }
 
-             return {
-               minX: loc[0],
-               minY: loc[1],
-               maxX: loc[0],
-               maxY: loc[1],
-               data: d
-             };
-           }).filter(Boolean);
-           cache.rtree.load(features);
-           connectSequences();
+             if (callback) {
+               callback(err, Object.assign({
+                 data: parsed
+               }, tile));
+             }
 
-           if (which === 'bubbles') {
-             dispatch$7.call('loadedImages');
+             if (!hasInflightRequests(_tileCache)) {
+               dispatch$6.call('loaded'); // stop the spinner
+             }
            }
-         });
-       } // call this sometimes to connect the bubbles into sequences
-
-
-       function connectSequences() {
-         var cache = _ssCache.bubbles;
-         var keepLeaders = [];
-
-         for (var i = 0; i < cache.leaders.length; i++) {
-           var bubble = cache.points[cache.leaders[i]];
-           var seen = {}; // try to make a sequence.. use the key of the leader bubble.
-
-           var sequence = {
-             key: bubble.key,
-             bubbles: []
+         },
+         isDataLoaded: function isDataLoaded(loc) {
+           var bbox = {
+             minX: loc[0],
+             minY: loc[1],
+             maxX: loc[0],
+             maxY: loc[1]
            };
-           var complete = false;
-
-           do {
-             sequence.bubbles.push(bubble);
-             seen[bubble.key] = true;
+           return _tileCache.rtree.collides(bbox);
+         },
+         // load the tile that covers the given `loc`
+         loadTileAtLoc: function loadTileAtLoc(loc, callback) {
+           // Back off if the toLoad queue is filling up.. re #6417
+           // (Currently `loadTileAtLoc` requests are considered low priority - used by operations to
+           // let users safely edit geometries which extend to unloaded tiles.  We can drop some.)
+           if (Object.keys(_tileCache.toLoad).length > 50) return;
+           var k = geoZoomToScale(_tileZoom$3 + 1);
+           var offset = geoRawMercator().scale(k)(loc);
+           var projection = geoRawMercator().transform({
+             k: k,
+             x: -offset[0],
+             y: -offset[1]
+           });
+           var tiles = tiler$5.zoomExtent([_tileZoom$3, _tileZoom$3]).getTiles(projection);
+           tiles.forEach(function (tile) {
+             if (_tileCache.toLoad[tile.id] || _tileCache.loaded[tile.id] || _tileCache.inflight[tile.id]) return;
+             _tileCache.toLoad[tile.id] = true;
+             this.loadTile(tile, callback);
+           }, this);
+         },
+         // Load notes from the API in tiles
+         // GET /api/0.6/notes?bbox=
+         loadNotes: function loadNotes(projection, noteOptions) {
+           noteOptions = Object.assign({
+             limit: 10000,
+             closed: 7
+           }, noteOptions);
+           if (_off) return;
+           var that = this;
+           var path = '/api/0.6/notes?limit=' + noteOptions.limit + '&closed=' + noteOptions.closed + '&bbox=';
 
-             if (bubble.ne === undefined) {
-               complete = true;
-             } else {
-               bubble = cache.points[bubble.ne]; // advance to next
-             }
-           } while (bubble && !seen[bubble.key] && !complete);
+           var throttleLoadUsers = throttle(function () {
+             var uids = Object.keys(_userCache.toLoad);
+             if (!uids.length) return;
+             that.loadUsers(uids, function () {}); // eagerly load user details
+           }, 750); // determine the needed tiles to cover the view
 
-           if (complete) {
-             _ssCache.sequences[sequence.key] = sequence; // assign bubbles to the sequence
 
-             for (var j = 0; j < sequence.bubbles.length; j++) {
-               sequence.bubbles[j].sequenceKey = sequence.key;
-             } // create a GeoJSON LineString
+           var tiles = tiler$5.zoomExtent([_noteZoom, _noteZoom]).getTiles(projection); // abort inflight requests that are no longer needed
 
+           abortUnwantedRequests$3(_noteCache, tiles); // issue new requests..
 
-             sequence.geojson = {
-               type: 'LineString',
-               properties: {
-                 captured_at: sequence.bubbles[0] ? sequence.bubbles[0].captured_at : null,
-                 captured_by: sequence.bubbles[0] ? sequence.bubbles[0].captured_by : null,
-                 key: sequence.key
-               },
-               coordinates: sequence.bubbles.map(function (d) {
-                 return d.loc;
-               })
+           tiles.forEach(function (tile) {
+             if (_noteCache.loaded[tile.id] || _noteCache.inflight[tile.id]) return;
+             var options = {
+               skipSeen: false
              };
-           } else {
-             keepLeaders.push(cache.leaders[i]);
+             _noteCache.inflight[tile.id] = that.loadFromAPI(path + tile.extent.toParam(), function (err) {
+               delete _noteCache.inflight[tile.id];
+
+               if (!err) {
+                 _noteCache.loaded[tile.id] = true;
+               }
+
+               throttleLoadUsers();
+               dispatch$6.call('loadedNotes');
+             }, options);
+           });
+         },
+         // Create a note
+         // POST /api/0.6/notes?params
+         postNoteCreate: function postNoteCreate(note, callback) {
+           if (!this.authenticated()) {
+             return callback({
+               message: 'Not Authenticated',
+               status: -3
+             }, note);
            }
-         } // couldn't complete these, save for later
 
+           if (_noteCache.inflightPost[note.id]) {
+             return callback({
+               message: 'Note update already inflight',
+               status: -2
+             }, note);
+           }
 
-         cache.leaders = keepLeaders;
-       }
-       /**
-        * getBubbles() handles the request to the server for a tile extent of 'bubbles' (streetside image locations).
-        */
+           if (!note.loc[0] || !note.loc[1] || !note.newComment) return; // location & description required
 
+           var comment = note.newComment;
 
-       function getBubbles(url, tile, callback) {
-         var rect = tile.extent.rectangle();
-         var urlForRequest = url + utilQsString({
-           n: rect[3],
-           s: rect[1],
-           e: rect[2],
-           w: rect[0],
-           c: maxResults$2,
-           appkey: bubbleAppKey,
-           jsCallback: '{callback}'
-         });
-         return jsonpRequest(urlForRequest, function (data) {
-           if (!data || data.error) {
-             callback(null);
-           } else {
-             callback(data);
+           if (note.newCategory && note.newCategory !== 'None') {
+             comment += ' #' + note.newCategory;
            }
-         });
-       } // partition viewport into higher zoom tiles
 
+           var path = '/api/0.6/notes?' + utilQsString({
+             lon: note.loc[0],
+             lat: note.loc[1],
+             text: comment
+           });
+           _noteCache.inflightPost[note.id] = oauth.xhr({
+             method: 'POST',
+             path: path
+           }, wrapcb(this, done, _connectionID));
 
-       function partitionViewport$2(projection) {
-         var z = geoScaleToZoom(projection.scale());
-         var z2 = Math.ceil(z * 2) / 2 + 2.5; // round to next 0.5 and add 2.5
+           function done(err, xml) {
+             delete _noteCache.inflightPost[note.id];
 
-         var tiler = utilTiler().zoomExtent([z2, z2]);
-         return tiler.getTiles(projection).map(function (tile) {
-           return tile.extent;
-         });
-       } // no more than `limit` results per partition.
+             if (err) {
+               return callback(err);
+             } // we get the updated note back, remove from caches and reparse..
 
 
-       function searchLimited$2(limit, projection, rtree) {
-         limit = limit || 5;
-         return partitionViewport$2(projection).reduce(function (result, extent) {
-           var found = rtree.search(extent.bbox()).slice(0, limit).map(function (d) {
-             return d.data;
-           });
-           return found.length ? result.concat(found) : result;
-         }, []);
-       }
-       /**
-        * loadImage()
-        */
+             this.removeNote(note);
+             var options = {
+               skipSeen: false
+             };
+             return parseXML(xml, function (err, results) {
+               if (err) {
+                 return callback(err);
+               } else {
+                 return callback(undefined, results[0]);
+               }
+             }, options);
+           }
+         },
+         // Update a note
+         // POST /api/0.6/notes/#id/comment?text=comment
+         // POST /api/0.6/notes/#id/close?text=comment
+         // POST /api/0.6/notes/#id/reopen?text=comment
+         postNoteUpdate: function postNoteUpdate(note, newStatus, callback) {
+           if (!this.authenticated()) {
+             return callback({
+               message: 'Not Authenticated',
+               status: -3
+             }, note);
+           }
+
+           if (_noteCache.inflightPost[note.id]) {
+             return callback({
+               message: 'Note update already inflight',
+               status: -2
+             }, note);
+           }
 
+           var action;
 
-       function loadImage(imgInfo) {
-         return new Promise(function (resolve) {
-           var img = new Image();
+           if (note.status !== 'closed' && newStatus === 'closed') {
+             action = 'close';
+           } else if (note.status !== 'open' && newStatus === 'open') {
+             action = 'reopen';
+           } else {
+             action = 'comment';
+             if (!note.newComment) return; // when commenting, comment required
+           }
 
-           img.onload = function () {
-             var canvas = document.getElementById('ideditor-canvas' + imgInfo.face);
-             var ctx = canvas.getContext('2d');
-             ctx.drawImage(img, imgInfo.x, imgInfo.y);
-             resolve({
-               imgInfo: imgInfo,
-               status: 'ok'
-             });
-           };
+           var path = '/api/0.6/notes/' + note.id + '/' + action;
 
-           img.onerror = function () {
-             resolve({
-               data: imgInfo,
-               status: 'error'
+           if (note.newComment) {
+             path += '?' + utilQsString({
+               text: note.newComment
              });
-           };
-
-           img.setAttribute('crossorigin', '');
-           img.src = imgInfo.url;
-         });
-       }
-       /**
-        * loadCanvas()
-        */
+           }
 
+           _noteCache.inflightPost[note.id] = oauth.xhr({
+             method: 'POST',
+             path: path
+           }, wrapcb(this, done, _connectionID));
 
-       function loadCanvas(imageGroup) {
-         return Promise.all(imageGroup.map(loadImage)).then(function (data) {
-           var canvas = document.getElementById('ideditor-canvas' + data[0].imgInfo.face);
-           var which = {
-             '01': 0,
-             '02': 1,
-             '03': 2,
-             '10': 3,
-             '11': 4,
-             '12': 5
-           };
-           var face = data[0].imgInfo.face;
-           _sceneOptions.cubeMap[which[face]] = canvas.toDataURL('image/jpeg', 1.0);
-           return {
-             status: 'loadCanvas for face ' + data[0].imgInfo.face + 'ok'
-           };
-         });
-       }
-       /**
-        * loadFaces()
-        */
+           function done(err, xml) {
+             delete _noteCache.inflightPost[note.id];
 
+             if (err) {
+               return callback(err);
+             } // we get the updated note back, remove from caches and reparse..
 
-       function loadFaces(faceGroup) {
-         return Promise.all(faceGroup.map(loadCanvas)).then(function () {
-           return {
-             status: 'loadFaces done'
-           };
-         });
-       }
 
-       function setupCanvas(selection, reset) {
-         if (reset) {
-           selection.selectAll('#ideditor-stitcher-canvases').remove();
-         } // Add the Streetside working canvases. These are used for 'stitching', or combining,
-         // multiple images for each of the six faces, before passing to the Pannellum control as DataUrls
+             this.removeNote(note); // update closed note cache - used to populate `closed:note` changeset tag
 
+             if (action === 'close') {
+               _noteCache.closed[note.id] = true;
+             } else if (action === 'reopen') {
+               delete _noteCache.closed[note.id];
+             }
 
-         selection.selectAll('#ideditor-stitcher-canvases').data([0]).enter().append('div').attr('id', 'ideditor-stitcher-canvases').attr('display', 'none').selectAll('canvas').data(['canvas01', 'canvas02', 'canvas03', 'canvas10', 'canvas11', 'canvas12']).enter().append('canvas').attr('id', function (d) {
-           return 'ideditor-' + d;
-         }).attr('width', _resolution).attr('height', _resolution);
-       }
+             var options = {
+               skipSeen: false
+             };
+             return parseXML(xml, function (err, results) {
+               if (err) {
+                 return callback(err);
+               } else {
+                 return callback(undefined, results[0]);
+               }
+             }, options);
+           }
+         },
+         "switch": function _switch(options) {
+           urlroot = options.urlroot;
+           oauth.options(Object.assign({
+             url: urlroot,
+             loading: authLoading,
+             done: authDone
+           }, options));
+           this.reset();
+           this.userChangesets(function () {}); // eagerly load user details/changesets
 
-       function qkToXY(qk) {
-         var x = 0;
-         var y = 0;
-         var scale = 256;
+           dispatch$6.call('change');
+           return this;
+         },
+         toggle: function toggle(val) {
+           _off = !val;
+           return this;
+         },
+         isChangesetInflight: function isChangesetInflight() {
+           return !!_changeset.inflight;
+         },
+         // get/set cached data
+         // This is used to save/restore the state when entering/exiting the walkthrough
+         // Also used for testing purposes.
+         caches: function caches(obj) {
+           function cloneCache(source) {
+             var target = {};
+             Object.keys(source).forEach(function (k) {
+               if (k === 'rtree') {
+                 target.rtree = new RBush().fromJSON(source.rtree.toJSON()); // clone rbush
+               } else if (k === 'note') {
+                 target.note = {};
+                 Object.keys(source.note).forEach(function (id) {
+                   target.note[id] = osmNote(source.note[id]); // copy notes
+                 });
+               } else {
+                 target[k] = JSON.parse(JSON.stringify(source[k])); // clone deep
+               }
+             });
+             return target;
+           }
 
-         for (var i = qk.length; i > 0; i--) {
-           var key = qk[i - 1];
-           x += +(key === '1' || key === '3') * scale;
-           y += +(key === '2' || key === '3') * scale;
-           scale *= 2;
-         }
+           if (!arguments.length) {
+             return {
+               tile: cloneCache(_tileCache),
+               note: cloneCache(_noteCache),
+               user: cloneCache(_userCache)
+             };
+           } // access caches directly for testing (e.g., loading notes rtree)
 
-         return [x, y];
-       }
 
-       function getQuadKeys() {
-         var dim = _resolution / 256;
-         var quadKeys;
+           if (obj === 'get') {
+             return {
+               tile: _tileCache,
+               note: _noteCache,
+               user: _userCache
+             };
+           }
 
-         if (dim === 16) {
-           quadKeys = ['0000', '0001', '0010', '0011', '0100', '0101', '0110', '0111', '1000', '1001', '1010', '1011', '1100', '1101', '1110', '1111', '0002', '0003', '0012', '0013', '0102', '0103', '0112', '0113', '1002', '1003', '1012', '1013', '1102', '1103', '1112', '1113', '0020', '0021', '0030', '0031', '0120', '0121', '0130', '0131', '1020', '1021', '1030', '1031', '1120', '1121', '1130', '1131', '0022', '0023', '0032', '0033', '0122', '0123', '0132', '0133', '1022', '1023', '1032', '1033', '1122', '1123', '1132', '1133', '0200', '0201', '0210', '0211', '0300', '0301', '0310', '0311', '1200', '1201', '1210', '1211', '1300', '1301', '1310', '1311', '0202', '0203', '0212', '0213', '0302', '0303', '0312', '0313', '1202', '1203', '1212', '1213', '1302', '1303', '1312', '1313', '0220', '0221', '0230', '0231', '0320', '0321', '0330', '0331', '1220', '1221', '1230', '1231', '1320', '1321', '1330', '1331', '0222', '0223', '0232', '0233', '0322', '0323', '0332', '0333', '1222', '1223', '1232', '1233', '1322', '1323', '1332', '1333', '2000', '2001', '2010', '2011', '2100', '2101', '2110', '2111', '3000', '3001', '3010', '3011', '3100', '3101', '3110', '3111', '2002', '2003', '2012', '2013', '2102', '2103', '2112', '2113', '3002', '3003', '3012', '3013', '3102', '3103', '3112', '3113', '2020', '2021', '2030', '2031', '2120', '2121', '2130', '2131', '3020', '3021', '3030', '3031', '3120', '3121', '3130', '3131', '2022', '2023', '2032', '2033', '2122', '2123', '2132', '2133', '3022', '3023', '3032', '3033', '3122', '3123', '3132', '3133', '2200', '2201', '2210', '2211', '2300', '2301', '2310', '2311', '3200', '3201', '3210', '3211', '3300', '3301', '3310', '3311', '2202', '2203', '2212', '2213', '2302', '2303', '2312', '2313', '3202', '3203', '3212', '3213', '3302', '3303', '3312', '3313', '2220', '2221', '2230', '2231', '2320', '2321', '2330', '2331', '3220', '3221', '3230', '3231', '3320', '3321', '3330', '3331', '2222', '2223', '2232', '2233', '2322', '2323', '2332', '2333', '3222', '3223', '3232', '3233', '3322', '3323', '3332', '3333'];
-         } else if (dim === 8) {
-           quadKeys = ['000', '001', '010', '011', '100', '101', '110', '111', '002', '003', '012', '013', '102', '103', '112', '113', '020', '021', '030', '031', '120', '121', '130', '131', '022', '023', '032', '033', '122', '123', '132', '133', '200', '201', '210', '211', '300', '301', '310', '311', '202', '203', '212', '213', '302', '303', '312', '313', '220', '221', '230', '231', '320', '321', '330', '331', '222', '223', '232', '233', '322', '323', '332', '333'];
-         } else if (dim === 4) {
-           quadKeys = ['00', '01', '10', '11', '02', '03', '12', '13', '20', '21', '30', '31', '22', '23', '32', '33'];
-         } else {
-           // dim === 2
-           quadKeys = ['0', '1', '2', '3'];
-         }
+           if (obj.tile) {
+             _tileCache = obj.tile;
+             _tileCache.inflight = {};
+           }
 
-         return quadKeys;
-       }
+           if (obj.note) {
+             _noteCache = obj.note;
+             _noteCache.inflight = {};
+             _noteCache.inflightPost = {};
+           }
 
-       var serviceStreetside = {
-         /**
-          * init() initialize streetside.
-          */
-         init: function init() {
-           if (!_ssCache) {
-             this.reset();
+           if (obj.user) {
+             _userCache = obj.user;
            }
 
-           this.event = utilRebind(this, dispatch$7, 'on');
+           return this;
+         },
+         logout: function logout() {
+           _userChangesets = undefined;
+           _userDetails = undefined;
+           oauth.logout();
+           dispatch$6.call('change');
+           return this;
+         },
+         authenticated: function authenticated() {
+           return oauth.authenticated();
          },
+         authenticate: function authenticate(callback) {
+           var that = this;
+           var cid = _connectionID;
+           _userChangesets = undefined;
+           _userDetails = undefined;
 
-         /**
-          * reset() reset the cache.
-          */
-         reset: function reset() {
-           if (_ssCache) {
-             Object.values(_ssCache.bubbles.inflight).forEach(abortRequest$6);
+           function done(err, res) {
+             if (err) {
+               if (callback) callback(err);
+               return;
+             }
+
+             if (that.getConnectionId() !== cid) {
+               if (callback) callback({
+                 message: 'Connection Switched',
+                 status: -1
+               });
+               return;
+             }
+
+             _rateLimitError = undefined;
+             dispatch$6.call('change');
+             if (callback) callback(err, res);
+             that.userChangesets(function () {}); // eagerly load user details/changesets
            }
 
-           _ssCache = {
-             bubbles: {
-               inflight: {},
-               loaded: {},
-               nextPage: {},
-               rtree: new RBush(),
-               points: {},
-               leaders: []
-             },
-             sequences: {}
-           };
+           return oauth.authenticate(done);
          },
-
-         /**
-          * bubbles()
-          */
-         bubbles: function bubbles(projection) {
-           var limit = 5;
-           return searchLimited$2(limit, projection, _ssCache.bubbles.rtree);
+         imageryBlocklists: function imageryBlocklists() {
+           return _imageryBlocklists;
          },
-         cachedImage: function cachedImage(imageKey) {
-           return _ssCache.bubbles.points[imageKey];
+         tileZoom: function tileZoom(val) {
+           if (!arguments.length) return _tileZoom$3;
+           _tileZoom$3 = val;
+           return this;
          },
-         sequences: function sequences(projection) {
+         // get all cached notes covering the viewport
+         notes: function notes(projection) {
            var viewport = projection.clipExtent();
            var min = [viewport[0][0], viewport[1][1]];
            var max = [viewport[1][0], viewport[0][1]];
            var bbox = geoExtent(projection.invert(min), projection.invert(max)).bbox();
-           var seen = {};
-           var results = []; // all sequences for bubbles in viewport
-
-           _ssCache.bubbles.rtree.search(bbox).forEach(function (d) {
-             var key = d.data.sequenceKey;
-
-             if (key && !seen[key]) {
-               seen[key] = true;
-               results.push(_ssCache.sequences[key].geojson);
-             }
+           return _noteCache.rtree.search(bbox).map(function (d) {
+             return d.data;
            });
-
-           return results;
          },
-
-         /**
-          * loadBubbles()
-          */
-         loadBubbles: function loadBubbles(projection, margin) {
-           // by default: request 2 nearby tiles so we can connect sequences.
-           if (margin === undefined) margin = 2;
-           loadTiles$2('bubbles', bubbleApi, projection, margin);
+         // get a single note from the cache
+         getNote: function getNote(id) {
+           return _noteCache.note[id];
          },
-         viewer: function viewer() {
-           return _pannellumViewer;
+         // remove a single note from the cache
+         removeNote: function removeNote(note) {
+           if (!(note instanceof osmNote) || !note.id) return;
+           delete _noteCache.note[note.id];
+           updateRtree$3(encodeNoteRtree(note), false); // false = remove
          },
-         initViewer: function initViewer() {
-           if (!window.pannellum) return;
-           if (_pannellumViewer) return;
-           _currScene += 1;
-
-           var sceneID = _currScene.toString();
+         // replace a single note in the cache
+         replaceNote: function replaceNote(note) {
+           if (!(note instanceof osmNote) || !note.id) return;
+           _noteCache.note[note.id] = note;
+           updateRtree$3(encodeNoteRtree(note), true); // true = replace
 
-           var options = {
-             'default': {
-               firstScene: sceneID
-             },
-             scenes: {}
-           };
-           options.scenes[sceneID] = _sceneOptions;
-           _pannellumViewer = window.pannellum.viewer('ideditor-viewer-streetside', options);
+           return note;
          },
-         ensureViewerLoaded: function ensureViewerLoaded(context) {
-           if (_loadViewerPromise$2) return _loadViewerPromise$2; // create ms-wrapper, a photo wrapper class
-
-           var wrap = context.container().select('.photoviewer').selectAll('.ms-wrapper').data([0]); // inject ms-wrapper into the photoviewer div
-           // (used by all to house each custom photo viewer)
-
-           var wrapEnter = wrap.enter().append('div').attr('class', 'photo-wrapper ms-wrapper').classed('hide', true);
-           var that = this;
-           var pointerPrefix = 'PointerEvent' in window ? 'pointer' : 'mouse'; // inject div to support streetside viewer (pannellum) and attribution line
-
-           wrapEnter.append('div').attr('id', 'ideditor-viewer-streetside').on(pointerPrefix + 'down.streetside', function () {
-             select(window).on(pointerPrefix + 'move.streetside', function () {
-               dispatch$7.call('viewerChanged');
-             }, true);
-           }).on(pointerPrefix + 'up.streetside pointercancel.streetside', function () {
-             select(window).on(pointerPrefix + 'move.streetside', null); // continue dispatching events for a few seconds, in case viewer has inertia.
+         // Get an array of note IDs closed during this session.
+         // Used to populate `closed:note` changeset tag
+         getClosedIDs: function getClosedIDs() {
+           return Object.keys(_noteCache.closed).sort();
+         }
+       };
 
-             var t = timer(function (elapsed) {
-               dispatch$7.call('viewerChanged');
+       var _apibase = 'https://wiki.openstreetmap.org/w/api.php';
+       var _inflight$1 = {};
+       var _wikibaseCache = {};
+       var _localeIDs = {
+         en: false
+       };
 
-               if (elapsed > 2000) {
-                 t.stop();
-               }
-             });
-           }).append('div').attr('class', 'photo-attribution fillD');
-           var controlsEnter = wrapEnter.append('div').attr('class', 'photo-controls-wrap').append('div').attr('class', 'photo-controls');
-           controlsEnter.append('button').on('click.back', step(-1)).html('◄');
-           controlsEnter.append('button').on('click.forward', step(1)).html('►'); // create working canvas for stitching together images
+       var debouncedRequest = debounce(request, 500, {
+         leading: false
+       });
 
-           wrap = wrap.merge(wrapEnter).call(setupCanvas, true); // Register viewer resize handler
+       function request(url, callback) {
+         if (_inflight$1[url]) return;
+         var controller = new AbortController();
+         _inflight$1[url] = controller;
+         d3_json(url, {
+           signal: controller.signal
+         }).then(function (result) {
+           delete _inflight$1[url];
+           if (callback) callback(null, result);
+         })["catch"](function (err) {
+           delete _inflight$1[url];
+           if (err.name === 'AbortError') return;
+           if (callback) callback(err.message);
+         });
+       }
 
-           context.ui().photoviewer.on('resize.streetside', function () {
-             if (_pannellumViewer) {
-               _pannellumViewer.resize();
-             }
+       var serviceOsmWikibase = {
+         init: function init() {
+           _inflight$1 = {};
+           _wikibaseCache = {};
+           _localeIDs = {};
+         },
+         reset: function reset() {
+           Object.values(_inflight$1).forEach(function (controller) {
+             controller.abort();
            });
-           _loadViewerPromise$2 = new Promise(function (resolve, reject) {
-             var loadedCount = 0;
+           _inflight$1 = {};
+         },
 
-             function loaded() {
-               loadedCount += 1; // wait until both files are loaded
+         /**
+          * Get the best value for the property, or undefined if not found
+          * @param entity object from wikibase
+          * @param property string e.g. 'P4' for image
+          * @param langCode string e.g. 'fr' for French
+          */
+         claimToValue: function claimToValue(entity, property, langCode) {
+           if (!entity.claims[property]) return undefined;
+           var locale = _localeIDs[langCode];
+           var preferredPick, localePick;
+           entity.claims[property].forEach(function (stmt) {
+             // If exists, use value limited to the needed language (has a qualifier P26 = locale)
+             // Or if not found, use the first value with the "preferred" rank
+             if (!preferredPick && stmt.rank === 'preferred') {
+               preferredPick = stmt;
+             }
 
-               if (loadedCount === 2) resolve();
+             if (locale && stmt.qualifiers && stmt.qualifiers.P26 && stmt.qualifiers.P26[0].datavalue.value.id === locale) {
+               localePick = stmt;
              }
+           });
+           var result = localePick || preferredPick;
 
-             var head = select('head'); // load streetside pannellum viewer css
+           if (result) {
+             var datavalue = result.mainsnak.datavalue;
+             return datavalue.type === 'wikibase-entityid' ? datavalue.value.id : datavalue.value;
+           } else {
+             return undefined;
+           }
+         },
 
-             head.selectAll('#ideditor-streetside-viewercss').data([0]).enter().append('link').attr('id', 'ideditor-streetside-viewercss').attr('rel', 'stylesheet').attr('crossorigin', 'anonymous').attr('href', context.asset(pannellumViewerCSS)).on('load.serviceStreetside', loaded).on('error.serviceStreetside', function () {
-               reject();
-             }); // load streetside pannellum viewer js
+         /**
+          * Convert monolingual property into a key-value object (language -> value)
+          * @param entity object from wikibase
+          * @param property string e.g. 'P31' for monolingual wiki page title
+          */
+         monolingualClaimToValueObj: function monolingualClaimToValueObj(entity, property) {
+           if (!entity || !entity.claims[property]) return undefined;
+           return entity.claims[property].reduce(function (acc, obj) {
+             var value = obj.mainsnak.datavalue.value;
+             acc[value.language] = value.text;
+             return acc;
+           }, {});
+         },
+         toSitelink: function toSitelink(key, value) {
+           var result = value ? 'Tag:' + key + '=' + value : 'Key:' + key;
+           return result.replace(/_/g, ' ').trim();
+         },
+         //
+         // Pass params object of the form:
+         // {
+         //   key: 'string',
+         //   value: 'string',
+         //   langCode: 'string'
+         // }
+         //
+         getEntity: function getEntity(params, callback) {
+           var doRequest = params.debounce ? debouncedRequest : request;
+           var that = this;
+           var titles = [];
+           var result = {};
+           var rtypeSitelink = params.key === 'type' && params.value ? ('Relation:' + params.value).replace(/_/g, ' ').trim() : false;
+           var keySitelink = params.key ? this.toSitelink(params.key) : false;
+           var tagSitelink = params.key && params.value ? this.toSitelink(params.key, params.value) : false;
+           var localeSitelink;
 
-             head.selectAll('#ideditor-streetside-viewerjs').data([0]).enter().append('script').attr('id', 'ideditor-streetside-viewerjs').attr('crossorigin', 'anonymous').attr('src', context.asset(pannellumViewerJS)).on('load.serviceStreetside', loaded).on('error.serviceStreetside', function () {
-               reject();
+           if (params.langCodes) {
+             params.langCodes.forEach(function (langCode) {
+               if (_localeIDs[langCode] === undefined) {
+                 // If this is the first time we are asking about this locale,
+                 // fetch corresponding entity (if it exists), and cache it.
+                 // If there is no such entry, cache `false` value to avoid re-requesting it.
+                 localeSitelink = ('Locale:' + langCode).replace(/_/g, ' ').trim();
+                 titles.push(localeSitelink);
+               }
              });
-           })["catch"](function () {
-             _loadViewerPromise$2 = null;
-           });
-           return _loadViewerPromise$2;
-
-           function step(stepBy) {
-             return function () {
-               var viewer = context.container().select('.photoviewer');
-               var selected = viewer.empty() ? undefined : viewer.datum();
-               if (!selected) return;
-               var nextID = stepBy === 1 ? selected.ne : selected.pr;
+           }
 
-               var yaw = _pannellumViewer.getYaw();
+           if (rtypeSitelink) {
+             if (_wikibaseCache[rtypeSitelink]) {
+               result.rtype = _wikibaseCache[rtypeSitelink];
+             } else {
+               titles.push(rtypeSitelink);
+             }
+           }
 
-               var ca = selected.ca + yaw;
-               var origin = selected.loc; // construct a search trapezoid pointing out from current bubble
+           if (keySitelink) {
+             if (_wikibaseCache[keySitelink]) {
+               result.key = _wikibaseCache[keySitelink];
+             } else {
+               titles.push(keySitelink);
+             }
+           }
 
-               var meters = 35;
-               var p1 = [origin[0] + geoMetersToLon(meters / 5, origin[1]), origin[1]];
-               var p2 = [origin[0] + geoMetersToLon(meters / 2, origin[1]), origin[1] + geoMetersToLat(meters)];
-               var p3 = [origin[0] - geoMetersToLon(meters / 2, origin[1]), origin[1] + geoMetersToLat(meters)];
-               var p4 = [origin[0] - geoMetersToLon(meters / 5, origin[1]), origin[1]];
-               var poly = [p1, p2, p3, p4, p1]; // rotate it to face forward/backward
+           if (tagSitelink) {
+             if (_wikibaseCache[tagSitelink]) {
+               result.tag = _wikibaseCache[tagSitelink];
+             } else {
+               titles.push(tagSitelink);
+             }
+           }
 
-               var angle = (stepBy === 1 ? ca : ca + 180) * (Math.PI / 180);
-               poly = geoRotate(poly, -angle, origin);
-               var extent = poly.reduce(function (extent, point) {
-                 return extent.extend(geoExtent(point));
-               }, geoExtent()); // find nearest other bubble in the search polygon
+           if (!titles.length) {
+             // Nothing to do, we already had everything in the cache
+             return callback(null, result);
+           } // Requesting just the user language code
+           // If backend recognizes the code, it will perform proper fallbacks,
+           // and the result will contain the requested code. If not, all values are returned:
+           // {"zh-tw":{"value":"...","language":"zh-tw","source-language":"zh-hant"}
+           // {"pt-br":{"value":"...","language":"pt","for-language":"pt-br"}}
 
-               var minDist = Infinity;
 
-               _ssCache.bubbles.rtree.search(extent.bbox()).forEach(function (d) {
-                 if (d.data.key === selected.key) return;
-                 if (!geoPointInPolygon(d.data.loc, poly)) return;
-                 var dist = geoVecLength(d.data.loc, selected.loc);
-                 var theta = selected.ca - d.data.ca;
-                 var minTheta = Math.min(Math.abs(theta), 360 - Math.abs(theta));
+           var obj = {
+             action: 'wbgetentities',
+             sites: 'wiki',
+             titles: titles.join('|'),
+             languages: params.langCodes.join('|'),
+             languagefallback: 1,
+             origin: '*',
+             format: 'json' // There is an MW Wikibase API bug https://phabricator.wikimedia.org/T212069
+             // We shouldn't use v1 until it gets fixed, but should switch to it afterwards
+             // formatversion: 2,
 
-                 if (minTheta > 20) {
-                   dist += 5; // penalize distance if camera angles don't match
-                 }
+           };
+           var url = _apibase + '?' + utilQsString(obj);
+           doRequest(url, function (err, d) {
+             if (err) {
+               callback(err);
+             } else if (!d.success || d.error) {
+               callback(d.error.messages.map(function (v) {
+                 return v.html['*'];
+               }).join('<br>'));
+             } else {
+               var localeID = false;
+               Object.values(d.entities).forEach(function (res) {
+                 if (res.missing !== '') {
+                   var title = res.sitelinks.wiki.title;
 
-                 if (dist < minDist) {
-                   nextID = d.data.key;
-                   minDist = dist;
+                   if (title === rtypeSitelink) {
+                     _wikibaseCache[rtypeSitelink] = res;
+                     result.rtype = res;
+                   } else if (title === keySitelink) {
+                     _wikibaseCache[keySitelink] = res;
+                     result.key = res;
+                   } else if (title === tagSitelink) {
+                     _wikibaseCache[tagSitelink] = res;
+                     result.tag = res;
+                   } else if (title === localeSitelink) {
+                     localeID = res.id;
+                   } else {
+                     console.log('Unexpected title ' + title); // eslint-disable-line no-console
+                   }
                  }
                });
 
-               var nextBubble = nextID && that.cachedImage(nextID);
-               if (!nextBubble) return;
-               context.map().centerEase(nextBubble.loc);
-               that.selectImage(context, nextBubble.key).yaw(yaw).showViewer(context);
-             };
-           }
-         },
-         yaw: function yaw(_yaw) {
-           if (typeof _yaw !== 'number') return _yaw;
-           _sceneOptions.yaw = _yaw;
-           return this;
+               if (localeSitelink) {
+                 // If locale ID is not found, store false to prevent repeated queries
+                 that.addLocale(params.langCodes[0], localeID);
+               }
+
+               callback(null, result);
+             }
+           });
          },
+         //
+         // Pass params object of the form:
+         // {
+         //   key: 'string',     // required
+         //   value: 'string'    // optional
+         // }
+         //
+         // Get an result object used to display tag documentation
+         // {
+         //   title:        'string',
+         //   description:  'string',
+         //   editURL:      'string',
+         //   imageURL:     'string',
+         //   wiki:         { title: 'string', text: 'string', url: 'string' }
+         // }
+         //
+         getDocs: function getDocs(params, callback) {
+           var that = this;
+           var langCodes = _mainLocalizer.localeCodes().map(function (code) {
+             return code.toLowerCase();
+           });
+           params.langCodes = langCodes;
+           this.getEntity(params, function (err, data) {
+             if (err) {
+               callback(err);
+               return;
+             }
 
-         /**
-          * showViewer()
-          */
-         showViewer: function showViewer(context) {
-           var wrap = context.container().select('.photoviewer').classed('hide', false);
-           var isHidden = wrap.selectAll('.photo-wrapper.ms-wrapper.hide').size();
+             var entity = data.rtype || data.tag || data.key;
 
-           if (isHidden) {
-             wrap.selectAll('.photo-wrapper:not(.ms-wrapper)').classed('hide', true);
-             wrap.selectAll('.photo-wrapper.ms-wrapper').classed('hide', false);
-           }
+             if (!entity) {
+               callback('No entity');
+               return;
+             }
 
-           return this;
-         },
+             var i;
+             var description;
 
-         /**
-          * hideViewer()
-          */
-         hideViewer: function hideViewer(context) {
-           var viewer = context.container().select('.photoviewer');
-           if (!viewer.empty()) viewer.datum(null);
-           viewer.classed('hide', true).selectAll('.photo-wrapper').classed('hide', true);
-           context.container().selectAll('.viewfield-group, .sequence, .icon-sign').classed('currentView', false);
-           this.updateUrlImage(null);
-           return this.setStyles(context, null, true);
-         },
+             for (i in langCodes) {
+               var _code = langCodes[i];
 
-         /**
-          * selectImage().
-          */
-         selectImage: function selectImage(context, key) {
-           var that = this;
-           var d = this.cachedImage(key);
-           var viewer = context.container().select('.photoviewer');
-           if (!viewer.empty()) viewer.datum(d);
-           this.setStyles(context, null, true);
-           var wrap = context.container().select('.photoviewer .ms-wrapper');
-           var attribution = wrap.selectAll('.photo-attribution').html('');
-           wrap.selectAll('.pnlm-load-box') // display "loading.."
-           .style('display', 'block');
-           if (!d) return this;
-           this.updateUrlImage(key);
-           _sceneOptions.northOffset = d.ca;
-           var line1 = attribution.append('div').attr('class', 'attribution-row');
-           var hiresDomId = utilUniqueDomId('streetside-hires'); // Add hires checkbox
+               if (entity.descriptions[_code] && entity.descriptions[_code].language === _code) {
+                 description = entity.descriptions[_code];
+                 break;
+               }
+             }
 
-           var label = line1.append('label').attr('for', hiresDomId).attr('class', 'streetside-hires');
-           label.append('input').attr('type', 'checkbox').attr('id', hiresDomId).property('checked', _hires).on('click', function (d3_event) {
-             d3_event.stopPropagation();
-             _hires = !_hires;
-             _resolution = _hires ? 1024 : 512;
-             wrap.call(setupCanvas, true);
-             var viewstate = {
-               yaw: _pannellumViewer.getYaw(),
-               pitch: _pannellumViewer.getPitch(),
-               hfov: _pannellumViewer.getHfov()
-             };
-             _sceneOptions = Object.assign(_sceneOptions, viewstate);
-             that.selectImage(context, d.key).showViewer(context);
-           });
-           label.append('span').html(_t.html('streetside.hires'));
-           var captureInfo = line1.append('div').attr('class', 'attribution-capture-info'); // Add capture date
+             if (!description && Object.values(entity.descriptions).length) description = Object.values(entity.descriptions)[0]; // prepare result
 
-           if (d.captured_by) {
-             var yyyy = new Date().getFullYear();
-             captureInfo.append('a').attr('class', 'captured_by').attr('target', '_blank').attr('href', 'https://www.microsoft.com/en-us/maps/streetside').html('©' + yyyy + ' Microsoft');
-             captureInfo.append('span').html('|');
-           }
+             var result = {
+               title: entity.title,
+               description: description ? description.value : '',
+               descriptionLocaleCode: description ? description.language : '',
+               editURL: 'https://wiki.openstreetmap.org/wiki/' + entity.title
+             }; // add image
 
-           if (d.captured_at) {
-             captureInfo.append('span').attr('class', 'captured_at').html(localeTimestamp(d.captured_at));
-           } // Add image links
+             if (entity.claims) {
+               var imageroot;
+               var image = that.claimToValue(entity, 'P4', langCodes[0]);
 
+               if (image) {
+                 imageroot = 'https://commons.wikimedia.org/w/index.php';
+               } else {
+                 image = that.claimToValue(entity, 'P28', langCodes[0]);
 
-           var line2 = attribution.append('div').attr('class', 'attribution-row');
-           line2.append('a').attr('class', 'image-view-link').attr('target', '_blank').attr('href', 'https://www.bing.com/maps?cp=' + d.loc[1] + '~' + d.loc[0] + '&lvl=17&dir=' + d.ca + '&style=x&v=2&sV=1').html(_t.html('streetside.view_on_bing'));
-           line2.append('a').attr('class', 'image-report-link').attr('target', '_blank').attr('href', 'https://www.bing.com/maps/privacyreport/streetsideprivacyreport?bubbleid=' + encodeURIComponent(d.key) + '&focus=photo&lat=' + d.loc[1] + '&lng=' + d.loc[0] + '&z=17').html(_t.html('streetside.report'));
-           var bubbleIdQuadKey = d.key.toString(4);
-           var paddingNeeded = 16 - bubbleIdQuadKey.length;
+                 if (image) {
+                   imageroot = 'https://wiki.openstreetmap.org/w/index.php';
+                 }
+               }
 
-           for (var i = 0; i < paddingNeeded; i++) {
-             bubbleIdQuadKey = '0' + bubbleIdQuadKey;
-           }
+               if (imageroot && image) {
+                 result.imageURL = imageroot + '?' + utilQsString({
+                   title: 'Special:Redirect/file/' + image,
+                   width: 400
+                 });
+               }
+             } // Try to get a wiki page from tag data item first, followed by the corresponding key data item.
+             // If neither tag nor key data item contain a wiki page in the needed language nor English,
+             // get the first found wiki page from either the tag or the key item.
 
-           var imgUrlPrefix = streetsideImagesApi + 'hs' + bubbleIdQuadKey;
-           var imgUrlSuffix = '.jpg?g=6338&n=z'; // Cubemap face code order matters here: front=01, right=02, back=03, left=10, up=11, down=12
 
-           var faceKeys = ['01', '02', '03', '10', '11', '12']; // Map images to cube faces
+             var rtypeWiki = that.monolingualClaimToValueObj(data.rtype, 'P31');
+             var tagWiki = that.monolingualClaimToValueObj(data.tag, 'P31');
+             var keyWiki = that.monolingualClaimToValueObj(data.key, 'P31');
+             var wikis = [rtypeWiki, tagWiki, keyWiki];
 
-           var quadKeys = getQuadKeys();
-           var faces = faceKeys.map(function (faceKey) {
-             return quadKeys.map(function (quadKey) {
-               var xy = qkToXY(quadKey);
-               return {
-                 face: faceKey,
-                 url: imgUrlPrefix + faceKey + quadKey + imgUrlSuffix,
-                 x: xy[0],
-                 y: xy[1]
-               };
-             });
-           });
-           loadFaces(faces).then(function () {
-             if (!_pannellumViewer) {
-               that.initViewer();
-             } else {
-               // make a new scene
-               _currScene += 1;
+             for (i in wikis) {
+               var wiki = wikis[i];
 
-               var sceneID = _currScene.toString();
+               for (var j in langCodes) {
+                 var code = langCodes[j];
+                 var referenceId = langCodes[0].split('-')[0] !== 'en' && code.split('-')[0] === 'en' ? 'inspector.wiki_en_reference' : 'inspector.wiki_reference';
+                 var info = getWikiInfo(wiki, code, referenceId);
 
-               _pannellumViewer.addScene(sceneID, _sceneOptions).loadScene(sceneID); // remove previous scene
+                 if (info) {
+                   result.wiki = info;
+                   break;
+                 }
+               }
 
+               if (result.wiki) break;
+             }
 
-               if (_currScene > 2) {
-                 sceneID = (_currScene - 1).toString();
+             callback(null, result); // Helper method to get wiki info if a given language exists
 
-                 _pannellumViewer.removeScene(sceneID);
+             function getWikiInfo(wiki, langCode, tKey) {
+               if (wiki && wiki[langCode]) {
+                 return {
+                   title: wiki[langCode],
+                   text: tKey,
+                   url: 'https://wiki.openstreetmap.org/wiki/' + wiki[langCode]
+                 };
                }
              }
            });
-           return this;
          },
-         getSequenceKeyForBubble: function getSequenceKeyForBubble(d) {
-           return d && d.sequenceKey;
+         addLocale: function addLocale(langCode, qid) {
+           // Makes it easier to unit test
+           _localeIDs[langCode] = qid;
          },
-         // Updates the currently highlighted sequence and selected bubble.
-         // Reset is only necessary when interacting with the viewport because
-         // this implicitly changes the currently selected bubble/sequence
-         setStyles: function setStyles(context, hovered, reset) {
-           if (reset) {
-             // reset all layers
-             context.container().selectAll('.viewfield-group').classed('highlighted', false).classed('hovered', false).classed('currentView', false);
-             context.container().selectAll('.sequence').classed('highlighted', false).classed('currentView', false);
-           }
-
-           var hoveredBubbleKey = hovered && hovered.key;
-           var hoveredSequenceKey = this.getSequenceKeyForBubble(hovered);
-           var hoveredSequence = hoveredSequenceKey && _ssCache.sequences[hoveredSequenceKey];
-           var hoveredBubbleKeys = hoveredSequence && hoveredSequence.bubbles.map(function (d) {
-             return d.key;
-           }) || [];
-           var viewer = context.container().select('.photoviewer');
-           var selected = viewer.empty() ? undefined : viewer.datum();
-           var selectedBubbleKey = selected && selected.key;
-           var selectedSequenceKey = this.getSequenceKeyForBubble(selected);
-           var selectedSequence = selectedSequenceKey && _ssCache.sequences[selectedSequenceKey];
-           var selectedBubbleKeys = selectedSequence && selectedSequence.bubbles.map(function (d) {
-             return d.key;
-           }) || []; // highlight sibling viewfields on either the selected or the hovered sequences
-
-           var highlightedBubbleKeys = utilArrayUnion(hoveredBubbleKeys, selectedBubbleKeys);
-           context.container().selectAll('.layer-streetside-images .viewfield-group').classed('highlighted', function (d) {
-             return highlightedBubbleKeys.indexOf(d.key) !== -1;
-           }).classed('hovered', function (d) {
-             return d.key === hoveredBubbleKey;
-           }).classed('currentView', function (d) {
-             return d.key === selectedBubbleKey;
-           });
-           context.container().selectAll('.layer-streetside-images .sequence').classed('highlighted', function (d) {
-             return d.properties.key === hoveredSequenceKey;
-           }).classed('currentView', function (d) {
-             return d.properties.key === selectedSequenceKey;
-           }); // update viewfields if needed
+         apibase: function apibase(val) {
+           if (!arguments.length) return _apibase;
+           _apibase = val;
+           return this;
+         }
+       };
 
-           context.container().selectAll('.viewfield-group .viewfield').attr('d', viewfieldPath);
+       var jsonpCache = {};
+       window.jsonpCache = jsonpCache;
+       function jsonpRequest(url, callback) {
+         var request = {
+           abort: function abort() {}
+         };
 
-           function viewfieldPath() {
-             var d = this.parentNode.__data__;
+         if (window.JSONP_FIX) {
+           if (window.JSONP_DELAY === 0) {
+             callback(window.JSONP_FIX);
+           } else {
+             var t = window.setTimeout(function () {
+               callback(window.JSONP_FIX);
+             }, window.JSONP_DELAY || 0);
 
-             if (d.pano && d.key !== selectedBubbleKey) {
-               return 'M 8,13 m -10,0 a 10,10 0 1,0 20,0 a 10,10 0 1,0 -20,0';
-             } else {
-               return 'M 6,9 C 8,8.4 8,8.4 10,9 L 16,-2 C 12,-5 4,-5 0,-2 z';
-             }
+             request.abort = function () {
+               window.clearTimeout(t);
+             };
            }
 
-           return this;
-         },
-         updateUrlImage: function updateUrlImage(imageKey) {
-           if (!window.mocha) {
-             var hash = utilStringQs(window.location.hash);
+           return request;
+         }
 
-             if (imageKey) {
-               hash.photo = 'streetside/' + imageKey;
-             } else {
-               delete hash.photo;
-             }
+         function rand() {
+           var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
+           var c = '';
+           var i = -1;
 
-             window.location.replace('#' + utilQsString(hash, true));
+           while (++i < 15) {
+             c += chars.charAt(Math.floor(Math.random() * 52));
            }
-         },
-
-         /**
-          * cache().
-          */
-         cache: function cache() {
-           return _ssCache;
-         }
-       };
-
-       var _apibase$1 = 'https://taginfo.openstreetmap.org/api/4/';
-       var _inflight$2 = {};
-       var _popularKeys = {};
-       var _taginfoCache = {};
-       var tag_sorts = {
-         point: 'count_nodes',
-         vertex: 'count_nodes',
-         area: 'count_ways',
-         line: 'count_ways'
-       };
-       var tag_sort_members = {
-         point: 'count_node_members',
-         vertex: 'count_node_members',
-         area: 'count_way_members',
-         line: 'count_way_members',
-         relation: 'count_relation_members'
-       };
-       var tag_filters = {
-         point: 'nodes',
-         vertex: 'nodes',
-         area: 'ways',
-         line: 'ways'
-       };
-       var tag_members_fractions = {
-         point: 'count_node_members_fraction',
-         vertex: 'count_node_members_fraction',
-         area: 'count_way_members_fraction',
-         line: 'count_way_members_fraction',
-         relation: 'count_relation_members_fraction'
-       };
 
-       function sets(params, n, o) {
-         if (params.geometry && o[params.geometry]) {
-           params[n] = o[params.geometry];
+           return c;
          }
 
-         return params;
-       }
-
-       function setFilter(params) {
-         return sets(params, 'filter', tag_filters);
-       }
+         function create(url) {
+           var e = url.match(/callback=(\w+)/);
+           var c = e ? e[1] : rand();
 
-       function setSort(params) {
-         return sets(params, 'sortname', tag_sorts);
-       }
+           jsonpCache[c] = function (data) {
+             if (jsonpCache[c]) {
+               callback(data);
+             }
 
-       function setSortMembers(params) {
-         return sets(params, 'sortname', tag_sort_members);
-       }
+             finalize();
+           };
 
-       function clean(params) {
-         return utilObjectOmit(params, ['geometry', 'debounce']);
-       }
+           function finalize() {
+             delete jsonpCache[c];
+             script.remove();
+           }
 
-       function filterKeys(type) {
-         var count_type = type ? 'count_' + type : 'count_all';
-         return function (d) {
-           return parseFloat(d[count_type]) > 2500 || d.in_wiki;
-         };
-       }
+           request.abort = finalize;
+           return 'jsonpCache.' + c;
+         }
 
-       function filterMultikeys(prefix) {
-         return function (d) {
-           // d.key begins with prefix, and d.key contains no additional ':'s
-           var re = new RegExp('^' + prefix + '(.*)$');
-           var matches = d.key.match(re) || [];
-           return matches.length === 2 && matches[1].indexOf(':') === -1;
-         };
+         var cb = create(url);
+         var script = select('head').append('script').attr('type', 'text/javascript').attr('src', url.replace(/(\{|%7B)callback(\}|%7D)/, cb));
+         return request;
        }
 
-       function filterValues(allowUpperCase) {
-         return function (d) {
-           if (d.value.match(/[;,]/) !== null) return false; // exclude some punctuation
+       var bubbleApi = 'https://dev.virtualearth.net/mapcontrol/HumanScaleServices/GetBubbles.ashx?';
+       var streetsideImagesApi = 'https://t.ssl.ak.tiles.virtualearth.net/tiles/';
+       var bubbleAppKey = 'AuftgJsO0Xs8Ts4M1xZUQJQXJNsvmh3IV8DkNieCiy3tCwCUMq76-WpkrBtNAuEm';
+       var pannellumViewerCSS = 'pannellum-streetside/pannellum.css';
+       var pannellumViewerJS = 'pannellum-streetside/pannellum.js';
+       var maxResults$2 = 2000;
+       var tileZoom$2 = 16.5;
+       var tiler$6 = utilTiler().zoomExtent([tileZoom$2, tileZoom$2]).skipNullIsland(true);
+       var dispatch$7 = dispatch('loadedImages', 'viewerChanged');
+       var minHfov = 10; // zoom in degrees:  20, 10, 5
 
-           if (!allowUpperCase && d.value.match(/[A-Z*]/) !== null) return false; // exclude uppercase letters
+       var maxHfov = 90; // zoom out degrees
 
-           return parseFloat(d.fraction) > 0.0;
-         };
-       }
+       var defaultHfov = 45;
+       var _hires = false;
+       var _resolution = 512; // higher numbers are slower - 512, 1024, 2048, 4096
 
-       function filterRoles(geometry) {
-         return function (d) {
-           if (d.role === '') return false; // exclude empty role
+       var _currScene = 0;
 
-           if (d.role.match(/[A-Z*;,]/) !== null) return false; // exclude uppercase letters and some punctuation
+       var _ssCache;
 
-           return parseFloat(d[tag_members_fractions[geometry]]) > 0.0;
-         };
-       }
+       var _pannellumViewer;
 
-       function valKey(d) {
-         return {
-           value: d.key,
-           title: d.key
-         };
-       }
+       var _sceneOptions = {
+         showFullscreenCtrl: false,
+         autoLoad: true,
+         compass: true,
+         yaw: 0,
+         minHfov: minHfov,
+         maxHfov: maxHfov,
+         hfov: defaultHfov,
+         type: 'cubemap',
+         cubeMap: []
+       };
 
-       function valKeyDescription(d) {
-         var obj = {
-           value: d.value,
-           title: d.description || d.value
-         };
+       var _loadViewerPromise$2;
+       /**
+        * abortRequest().
+        */
 
-         if (d.count) {
-           obj.count = d.count;
-         }
 
-         return obj;
+       function abortRequest$6(i) {
+         i.abort();
        }
+       /**
+        * localeTimeStamp().
+        */
 
-       function roleKey(d) {
-         return {
-           value: d.role,
-           title: d.role
+
+       function localeTimestamp(s) {
+         if (!s) return null;
+         var options = {
+           day: 'numeric',
+           month: 'short',
+           year: 'numeric'
          };
-       } // sort keys with ':' lower than keys without ':'
+         var d = new Date(s);
+         if (isNaN(d.getTime())) return null;
+         return d.toLocaleString(_mainLocalizer.localeCode(), options);
+       }
+       /**
+        * loadTiles() wraps the process of generating tiles and then fetching image points for each tile.
+        */
 
 
-       function sortKeys(a, b) {
-         return a.key.indexOf(':') === -1 && b.key.indexOf(':') !== -1 ? -1 : a.key.indexOf(':') !== -1 && b.key.indexOf(':') === -1 ? 1 : 0;
-       }
+       function loadTiles$2(which, url, projection, margin) {
+         var tiles = tiler$6.margin(margin).getTiles(projection); // abort inflight requests that are no longer needed
 
-       var debouncedRequest$1 = debounce(request$1, 300, {
-         leading: false
-       });
+         var cache = _ssCache[which];
+         Object.keys(cache.inflight).forEach(function (k) {
+           var wanted = tiles.find(function (tile) {
+             return k.indexOf(tile.id + ',') === 0;
+           });
 
-       function request$1(url, params, exactMatch, callback, loaded) {
-         if (_inflight$2[url]) return;
-         if (checkCache(url, params, exactMatch, callback)) return;
-         var controller = new AbortController();
-         _inflight$2[url] = controller;
-         d3_json(url, {
-           signal: controller.signal
-         }).then(function (result) {
-           delete _inflight$2[url];
-           if (loaded) loaded(null, result);
-         })["catch"](function (err) {
-           delete _inflight$2[url];
-           if (err.name === 'AbortError') return;
-           if (loaded) loaded(err.message);
+           if (!wanted) {
+             abortRequest$6(cache.inflight[k]);
+             delete cache.inflight[k];
+           }
+         });
+         tiles.forEach(function (tile) {
+           return loadNextTilePage$2(which, url, tile);
          });
        }
+       /**
+        * loadNextTilePage() load data for the next tile page in line.
+        */
 
-       function checkCache(url, params, exactMatch, callback) {
-         var rp = params.rp || 25;
-         var testQuery = params.query || '';
-         var testUrl = url;
-
-         do {
-           var hit = _taginfoCache[testUrl]; // exact match, or shorter match yielding fewer than max results (rp)
 
-           if (hit && (url === testUrl || hit.length < rp)) {
-             callback(null, hit);
-             return true;
-           } // don't try to shorten the query
+       function loadNextTilePage$2(which, url, tile) {
+         var cache = _ssCache[which];
+         var nextPage = cache.nextPage[tile.id] || 0;
+         var id = tile.id + ',' + String(nextPage);
+         if (cache.loaded[id] || cache.inflight[id]) return;
+         cache.inflight[id] = getBubbles(url, tile, function (bubbles) {
+           cache.loaded[id] = true;
+           delete cache.inflight[id];
+           if (!bubbles) return; // [].shift() removes the first element, some statistics info, not a bubble point
 
+           bubbles.shift();
+           var features = bubbles.map(function (bubble) {
+             if (cache.points[bubble.id]) return null; // skip duplicates
 
-           if (exactMatch || !testQuery.length) return false; // do shorten the query to see if we already have a cached result
-           // that has returned fewer than max results (rp)
+             var loc = [bubble.lo, bubble.la];
+             var d = {
+               loc: loc,
+               key: bubble.id,
+               ca: bubble.he,
+               captured_at: bubble.cd,
+               captured_by: 'microsoft',
+               // nbn: bubble.nbn,
+               // pbn: bubble.pbn,
+               // ad: bubble.ad,
+               // rn: bubble.rn,
+               pr: bubble.pr,
+               // previous
+               ne: bubble.ne,
+               // next
+               pano: true,
+               sequenceKey: null
+             };
+             cache.points[bubble.id] = d; // a sequence starts here
 
-           testQuery = testQuery.slice(0, -1);
-           testUrl = url.replace(/&query=(.*?)&/, '&query=' + testQuery + '&');
-         } while (testQuery.length >= 0);
+             if (bubble.pr === undefined) {
+               cache.leaders.push(bubble.id);
+             }
 
-         return false;
-       }
+             return {
+               minX: loc[0],
+               minY: loc[1],
+               maxX: loc[0],
+               maxY: loc[1],
+               data: d
+             };
+           }).filter(Boolean);
+           cache.rtree.load(features);
+           connectSequences();
 
-       var serviceTaginfo = {
-         init: function init() {
-           _inflight$2 = {};
-           _taginfoCache = {};
-           _popularKeys = {
-             // manually exclude some keys – #5377, #7485
-             postal_code: true,
-             full_name: true,
-             loc_name: true,
-             reg_name: true,
-             short_name: true,
-             sorting_name: true,
-             artist_name: true,
-             nat_name: true,
-             long_name: true,
-             'bridge:name': true
-           }; // Fetch popular keys.  We'll exclude these from `values`
-           // lookups because they stress taginfo, and they aren't likely
-           // to yield meaningful autocomplete results.. see #3955
+           if (which === 'bubbles') {
+             dispatch$7.call('loadedImages');
+           }
+         });
+       } // call this sometimes to connect the bubbles into sequences
 
-           var params = {
-             rp: 100,
-             sortname: 'values_all',
-             sortorder: 'desc',
-             page: 1,
-             debounce: false,
-             lang: _mainLocalizer.languageCode()
-           };
-           this.keys(params, function (err, data) {
-             if (err) return;
-             data.forEach(function (d) {
-               if (d.value === 'opening_hours') return; // exception
 
-               _popularKeys[d.value] = true;
-             });
-           });
-         },
-         reset: function reset() {
-           Object.values(_inflight$2).forEach(function (controller) {
-             controller.abort();
-           });
-           _inflight$2 = {};
-         },
-         keys: function keys(params, callback) {
-           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
-           params = clean(setSort(params));
-           params = Object.assign({
-             rp: 10,
-             sortname: 'count_all',
-             sortorder: 'desc',
-             page: 1,
-             lang: _mainLocalizer.languageCode()
-           }, params);
-           var url = _apibase$1 + 'keys/all?' + utilQsString(params);
-           doRequest(url, params, false, callback, function (err, d) {
-             if (err) {
-               callback(err);
-             } else {
-               var f = filterKeys(params.filter);
-               var result = d.data.filter(f).sort(sortKeys).map(valKey);
-               _taginfoCache[url] = result;
-               callback(null, result);
-             }
-           });
-         },
-         multikeys: function multikeys(params, callback) {
-           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
-           params = clean(setSort(params));
-           params = Object.assign({
-             rp: 25,
-             sortname: 'count_all',
-             sortorder: 'desc',
-             page: 1,
-             lang: _mainLocalizer.languageCode()
-           }, params);
-           var prefix = params.query;
-           var url = _apibase$1 + 'keys/all?' + utilQsString(params);
-           doRequest(url, params, true, callback, function (err, d) {
-             if (err) {
-               callback(err);
-             } else {
-               var f = filterMultikeys(prefix);
-               var result = d.data.filter(f).map(valKey);
-               _taginfoCache[url] = result;
-               callback(null, result);
-             }
-           });
-         },
-         values: function values(params, callback) {
-           // Exclude popular keys from values lookups.. see #3955
-           var key = params.key;
+       function connectSequences() {
+         var cache = _ssCache.bubbles;
+         var keepLeaders = [];
 
-           if (key && _popularKeys[key]) {
-             callback(null, []);
-             return;
-           }
+         for (var i = 0; i < cache.leaders.length; i++) {
+           var bubble = cache.points[cache.leaders[i]];
+           var seen = {}; // try to make a sequence.. use the key of the leader bubble.
 
-           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
-           params = clean(setSort(setFilter(params)));
-           params = Object.assign({
-             rp: 25,
-             sortname: 'count_all',
-             sortorder: 'desc',
-             page: 1,
-             lang: _mainLocalizer.languageCode()
-           }, params);
-           var url = _apibase$1 + 'key/values?' + utilQsString(params);
-           doRequest(url, params, false, callback, function (err, d) {
-             if (err) {
-               callback(err);
-             } else {
-               // In most cases we prefer taginfo value results with lowercase letters.
-               // A few OSM keys expect values to contain uppercase values (see #3377).
-               // This is not an exhaustive list (e.g. `name` also has uppercase values)
-               // but these are the fields where taginfo value lookup is most useful.
-               var re = /network|taxon|genus|species|brand|grape_variety|royal_cypher|listed_status|booth|rating|stars|:output|_hours|_times|_ref|manufacturer|country|target|brewery/;
-               var allowUpperCase = re.test(params.key);
-               var f = filterValues(allowUpperCase);
-               var result = d.data.filter(f).map(valKeyDescription);
-               _taginfoCache[url] = result;
-               callback(null, result);
-             }
-           });
-         },
-         roles: function roles(params, callback) {
-           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
-           var geometry = params.geometry;
-           params = clean(setSortMembers(params));
-           params = Object.assign({
-             rp: 25,
-             sortname: 'count_all_members',
-             sortorder: 'desc',
-             page: 1,
-             lang: _mainLocalizer.languageCode()
-           }, params);
-           var url = _apibase$1 + 'relation/roles?' + utilQsString(params);
-           doRequest(url, params, true, callback, function (err, d) {
-             if (err) {
-               callback(err);
-             } else {
-               var f = filterRoles(geometry);
-               var result = d.data.filter(f).map(roleKey);
-               _taginfoCache[url] = result;
-               callback(null, result);
-             }
-           });
-         },
-         docs: function docs(params, callback) {
-           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
-           params = clean(setSort(params));
-           var path = 'key/wiki_pages?';
+           var sequence = {
+             key: bubble.key,
+             bubbles: []
+           };
+           var complete = false;
 
-           if (params.value) {
-             path = 'tag/wiki_pages?';
-           } else if (params.rtype) {
-             path = 'relation/wiki_pages?';
-           }
+           do {
+             sequence.bubbles.push(bubble);
+             seen[bubble.key] = true;
 
-           var url = _apibase$1 + path + utilQsString(params);
-           doRequest(url, params, true, callback, function (err, d) {
-             if (err) {
-               callback(err);
+             if (bubble.ne === undefined) {
+               complete = true;
              } else {
-               _taginfoCache[url] = d.data;
-               callback(null, d.data);
+               bubble = cache.points[bubble.ne]; // advance to next
              }
-           });
-         },
-         apibase: function apibase(_) {
-           if (!arguments.length) return _apibase$1;
-           _apibase$1 = _;
-           return this;
-         }
-       };
-
-       var helpers$1 = createCommonjsModule(function (module, exports) {
-
-         Object.defineProperty(exports, "__esModule", {
-           value: true
-         });
-         /**
-          * @module helpers
-          */
+           } while (bubble && !seen[bubble.key] && !complete);
 
-         /**
-          * Earth Radius used with the Harvesine formula and approximates using a spherical (non-ellipsoid) Earth.
-          *
-          * @memberof helpers
-          * @type {number}
-          */
+           if (complete) {
+             _ssCache.sequences[sequence.key] = sequence; // assign bubbles to the sequence
 
-         exports.earthRadius = 6371008.8;
-         /**
-          * Unit of measurement factors using a spherical (non-ellipsoid) earth radius.
-          *
-          * @memberof helpers
-          * @type {Object}
-          */
+             for (var j = 0; j < sequence.bubbles.length; j++) {
+               sequence.bubbles[j].sequenceKey = sequence.key;
+             } // create a GeoJSON LineString
 
-         exports.factors = {
-           centimeters: exports.earthRadius * 100,
-           centimetres: exports.earthRadius * 100,
-           degrees: exports.earthRadius / 111325,
-           feet: exports.earthRadius * 3.28084,
-           inches: exports.earthRadius * 39.370,
-           kilometers: exports.earthRadius / 1000,
-           kilometres: exports.earthRadius / 1000,
-           meters: exports.earthRadius,
-           metres: exports.earthRadius,
-           miles: exports.earthRadius / 1609.344,
-           millimeters: exports.earthRadius * 1000,
-           millimetres: exports.earthRadius * 1000,
-           nauticalmiles: exports.earthRadius / 1852,
-           radians: 1,
-           yards: exports.earthRadius / 1.0936
-         };
-         /**
-          * Units of measurement factors based on 1 meter.
-          *
-          * @memberof helpers
-          * @type {Object}
-          */
 
-         exports.unitsFactors = {
-           centimeters: 100,
-           centimetres: 100,
-           degrees: 1 / 111325,
-           feet: 3.28084,
-           inches: 39.370,
-           kilometers: 1 / 1000,
-           kilometres: 1 / 1000,
-           meters: 1,
-           metres: 1,
-           miles: 1 / 1609.344,
-           millimeters: 1000,
-           millimetres: 1000,
-           nauticalmiles: 1 / 1852,
-           radians: 1 / exports.earthRadius,
-           yards: 1 / 1.0936
-         };
-         /**
-          * Area of measurement factors based on 1 square meter.
-          *
-          * @memberof helpers
-          * @type {Object}
-          */
+             sequence.geojson = {
+               type: 'LineString',
+               properties: {
+                 captured_at: sequence.bubbles[0] ? sequence.bubbles[0].captured_at : null,
+                 captured_by: sequence.bubbles[0] ? sequence.bubbles[0].captured_by : null,
+                 key: sequence.key
+               },
+               coordinates: sequence.bubbles.map(function (d) {
+                 return d.loc;
+               })
+             };
+           } else {
+             keepLeaders.push(cache.leaders[i]);
+           }
+         } // couldn't complete these, save for later
 
-         exports.areaFactors = {
-           acres: 0.000247105,
-           centimeters: 10000,
-           centimetres: 10000,
-           feet: 10.763910417,
-           inches: 1550.003100006,
-           kilometers: 0.000001,
-           kilometres: 0.000001,
-           meters: 1,
-           metres: 1,
-           miles: 3.86e-7,
-           millimeters: 1000000,
-           millimetres: 1000000,
-           yards: 1.195990046
-         };
-         /**
-          * Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
-          *
-          * @name feature
-          * @param {Geometry} geometry input geometry
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature} a GeoJSON Feature
-          * @example
-          * var geometry = {
-          *   "type": "Point",
-          *   "coordinates": [110, 50]
-          * };
-          *
-          * var feature = turf.feature(geometry);
-          *
-          * //=feature
-          */
 
-         function feature(geom, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+         cache.leaders = keepLeaders;
+       }
+       /**
+        * getBubbles() handles the request to the server for a tile extent of 'bubbles' (streetside image locations).
+        */
 
-           var feat = {
-             type: "Feature"
-           };
 
-           if (options.id === 0 || options.id) {
-             feat.id = options.id;
+       function getBubbles(url, tile, callback) {
+         var rect = tile.extent.rectangle();
+         var urlForRequest = url + utilQsString({
+           n: rect[3],
+           s: rect[1],
+           e: rect[2],
+           w: rect[0],
+           c: maxResults$2,
+           appkey: bubbleAppKey,
+           jsCallback: '{callback}'
+         });
+         return jsonpRequest(urlForRequest, function (data) {
+           if (!data || data.error) {
+             callback(null);
+           } else {
+             callback(data);
            }
+         });
+       } // partition viewport into higher zoom tiles
 
-           if (options.bbox) {
-             feat.bbox = options.bbox;
-           }
 
-           feat.properties = properties || {};
-           feat.geometry = geom;
-           return feat;
-         }
+       function partitionViewport$2(projection) {
+         var z = geoScaleToZoom(projection.scale());
+         var z2 = Math.ceil(z * 2) / 2 + 2.5; // round to next 0.5 and add 2.5
 
-         exports.feature = feature;
-         /**
-          * Creates a GeoJSON {@link Geometry} from a Geometry string type & coordinates.
-          * For GeometryCollection type use `helpers.geometryCollection`
-          *
-          * @name geometry
-          * @param {string} type Geometry Type
-          * @param {Array<any>} coordinates Coordinates
-          * @param {Object} [options={}] Optional Parameters
-          * @returns {Geometry} a GeoJSON Geometry
-          * @example
-          * var type = "Point";
-          * var coordinates = [110, 50];
-          * var geometry = turf.geometry(type, coordinates);
-          * // => geometry
-          */
+         var tiler = utilTiler().zoomExtent([z2, z2]);
+         return tiler.getTiles(projection).map(function (tile) {
+           return tile.extent;
+         });
+       } // no more than `limit` results per partition.
 
-         function geometry(type, coordinates, options) {
 
-           switch (type) {
-             case "Point":
-               return point(coordinates).geometry;
+       function searchLimited$2(limit, projection, rtree) {
+         limit = limit || 5;
+         return partitionViewport$2(projection).reduce(function (result, extent) {
+           var found = rtree.search(extent.bbox()).slice(0, limit).map(function (d) {
+             return d.data;
+           });
+           return found.length ? result.concat(found) : result;
+         }, []);
+       }
+       /**
+        * loadImage()
+        */
 
-             case "LineString":
-               return lineString(coordinates).geometry;
 
-             case "Polygon":
-               return polygon(coordinates).geometry;
+       function loadImage(imgInfo) {
+         return new Promise(function (resolve) {
+           var img = new Image();
 
-             case "MultiPoint":
-               return multiPoint(coordinates).geometry;
+           img.onload = function () {
+             var canvas = document.getElementById('ideditor-canvas' + imgInfo.face);
+             var ctx = canvas.getContext('2d');
+             ctx.drawImage(img, imgInfo.x, imgInfo.y);
+             resolve({
+               imgInfo: imgInfo,
+               status: 'ok'
+             });
+           };
 
-             case "MultiLineString":
-               return multiLineString(coordinates).geometry;
+           img.onerror = function () {
+             resolve({
+               data: imgInfo,
+               status: 'error'
+             });
+           };
 
-             case "MultiPolygon":
-               return multiPolygon(coordinates).geometry;
+           img.setAttribute('crossorigin', '');
+           img.src = imgInfo.url;
+         });
+       }
+       /**
+        * loadCanvas()
+        */
 
-             default:
-               throw new Error(type + " is invalid");
-           }
-         }
 
-         exports.geometry = geometry;
-         /**
-          * Creates a {@link Point} {@link Feature} from a Position.
-          *
-          * @name point
-          * @param {Array<number>} coordinates longitude, latitude position (each in decimal degrees)
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<Point>} a Point feature
-          * @example
-          * var point = turf.point([-75.343, 39.984]);
-          *
-          * //=point
-          */
+       function loadCanvas(imageGroup) {
+         return Promise.all(imageGroup.map(loadImage)).then(function (data) {
+           var canvas = document.getElementById('ideditor-canvas' + data[0].imgInfo.face);
+           var which = {
+             '01': 0,
+             '02': 1,
+             '03': 2,
+             '10': 3,
+             '11': 4,
+             '12': 5
+           };
+           var face = data[0].imgInfo.face;
+           _sceneOptions.cubeMap[which[face]] = canvas.toDataURL('image/jpeg', 1.0);
+           return {
+             status: 'loadCanvas for face ' + data[0].imgInfo.face + 'ok'
+           };
+         });
+       }
+       /**
+        * loadFaces()
+        */
 
-         function point(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
 
-           var geom = {
-             type: "Point",
-             coordinates: coordinates
+       function loadFaces(faceGroup) {
+         return Promise.all(faceGroup.map(loadCanvas)).then(function () {
+           return {
+             status: 'loadFaces done'
            };
-           return feature(geom, properties, options);
-         }
-
-         exports.point = point;
-         /**
-          * Creates a {@link Point} {@link FeatureCollection} from an Array of Point coordinates.
-          *
-          * @name points
-          * @param {Array<Array<number>>} coordinates an array of Points
-          * @param {Object} [properties={}] Translate these properties to each Feature
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north]
-          * associated with the FeatureCollection
-          * @param {string|number} [options.id] Identifier associated with the FeatureCollection
-          * @returns {FeatureCollection<Point>} Point Feature
-          * @example
-          * var points = turf.points([
-          *   [-75, 39],
-          *   [-80, 45],
-          *   [-78, 50]
-          * ]);
-          *
-          * //=points
-          */
+         });
+       }
 
-         function points(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+       function setupCanvas(selection, reset) {
+         if (reset) {
+           selection.selectAll('#ideditor-stitcher-canvases').remove();
+         } // Add the Streetside working canvases. These are used for 'stitching', or combining,
+         // multiple images for each of the six faces, before passing to the Pannellum control as DataUrls
 
-           return featureCollection(coordinates.map(function (coords) {
-             return point(coords, properties);
-           }), options);
-         }
 
-         exports.points = points;
-         /**
-          * Creates a {@link Polygon} {@link Feature} from an Array of LinearRings.
-          *
-          * @name polygon
-          * @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<Polygon>} Polygon Feature
-          * @example
-          * var polygon = turf.polygon([[[-5, 52], [-4, 56], [-2, 51], [-7, 54], [-5, 52]]], { name: 'poly1' });
-          *
-          * //=polygon
-          */
+         selection.selectAll('#ideditor-stitcher-canvases').data([0]).enter().append('div').attr('id', 'ideditor-stitcher-canvases').attr('display', 'none').selectAll('canvas').data(['canvas01', 'canvas02', 'canvas03', 'canvas10', 'canvas11', 'canvas12']).enter().append('canvas').attr('id', function (d) {
+           return 'ideditor-' + d;
+         }).attr('width', _resolution).attr('height', _resolution);
+       }
 
-         function polygon(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+       function qkToXY(qk) {
+         var x = 0;
+         var y = 0;
+         var scale = 256;
 
-           for (var _i = 0, coordinates_1 = coordinates; _i < coordinates_1.length; _i++) {
-             var ring = coordinates_1[_i];
+         for (var i = qk.length; i > 0; i--) {
+           var key = qk[i - 1];
+           x += +(key === '1' || key === '3') * scale;
+           y += +(key === '2' || key === '3') * scale;
+           scale *= 2;
+         }
 
-             if (ring.length < 4) {
-               throw new Error("Each LinearRing of a Polygon must have 4 or more Positions.");
-             }
+         return [x, y];
+       }
 
-             for (var j = 0; j < ring[ring.length - 1].length; j++) {
-               // Check if first point of Polygon contains two numbers
-               if (ring[ring.length - 1][j] !== ring[0][j]) {
-                 throw new Error("First and last Position are not equivalent.");
-               }
-             }
-           }
+       function getQuadKeys() {
+         var dim = _resolution / 256;
+         var quadKeys;
 
-           var geom = {
-             type: "Polygon",
-             coordinates: coordinates
-           };
-           return feature(geom, properties, options);
+         if (dim === 16) {
+           quadKeys = ['0000', '0001', '0010', '0011', '0100', '0101', '0110', '0111', '1000', '1001', '1010', '1011', '1100', '1101', '1110', '1111', '0002', '0003', '0012', '0013', '0102', '0103', '0112', '0113', '1002', '1003', '1012', '1013', '1102', '1103', '1112', '1113', '0020', '0021', '0030', '0031', '0120', '0121', '0130', '0131', '1020', '1021', '1030', '1031', '1120', '1121', '1130', '1131', '0022', '0023', '0032', '0033', '0122', '0123', '0132', '0133', '1022', '1023', '1032', '1033', '1122', '1123', '1132', '1133', '0200', '0201', '0210', '0211', '0300', '0301', '0310', '0311', '1200', '1201', '1210', '1211', '1300', '1301', '1310', '1311', '0202', '0203', '0212', '0213', '0302', '0303', '0312', '0313', '1202', '1203', '1212', '1213', '1302', '1303', '1312', '1313', '0220', '0221', '0230', '0231', '0320', '0321', '0330', '0331', '1220', '1221', '1230', '1231', '1320', '1321', '1330', '1331', '0222', '0223', '0232', '0233', '0322', '0323', '0332', '0333', '1222', '1223', '1232', '1233', '1322', '1323', '1332', '1333', '2000', '2001', '2010', '2011', '2100', '2101', '2110', '2111', '3000', '3001', '3010', '3011', '3100', '3101', '3110', '3111', '2002', '2003', '2012', '2013', '2102', '2103', '2112', '2113', '3002', '3003', '3012', '3013', '3102', '3103', '3112', '3113', '2020', '2021', '2030', '2031', '2120', '2121', '2130', '2131', '3020', '3021', '3030', '3031', '3120', '3121', '3130', '3131', '2022', '2023', '2032', '2033', '2122', '2123', '2132', '2133', '3022', '3023', '3032', '3033', '3122', '3123', '3132', '3133', '2200', '2201', '2210', '2211', '2300', '2301', '2310', '2311', '3200', '3201', '3210', '3211', '3300', '3301', '3310', '3311', '2202', '2203', '2212', '2213', '2302', '2303', '2312', '2313', '3202', '3203', '3212', '3213', '3302', '3303', '3312', '3313', '2220', '2221', '2230', '2231', '2320', '2321', '2330', '2331', '3220', '3221', '3230', '3231', '3320', '3321', '3330', '3331', '2222', '2223', '2232', '2233', '2322', '2323', '2332', '2333', '3222', '3223', '3232', '3233', '3322', '3323', '3332', '3333'];
+         } else if (dim === 8) {
+           quadKeys = ['000', '001', '010', '011', '100', '101', '110', '111', '002', '003', '012', '013', '102', '103', '112', '113', '020', '021', '030', '031', '120', '121', '130', '131', '022', '023', '032', '033', '122', '123', '132', '133', '200', '201', '210', '211', '300', '301', '310', '311', '202', '203', '212', '213', '302', '303', '312', '313', '220', '221', '230', '231', '320', '321', '330', '331', '222', '223', '232', '233', '322', '323', '332', '333'];
+         } else if (dim === 4) {
+           quadKeys = ['00', '01', '10', '11', '02', '03', '12', '13', '20', '21', '30', '31', '22', '23', '32', '33'];
+         } else {
+           // dim === 2
+           quadKeys = ['0', '1', '2', '3'];
          }
 
-         exports.polygon = polygon;
+         return quadKeys;
+       }
+
+       var serviceStreetside = {
          /**
-          * Creates a {@link Polygon} {@link FeatureCollection} from an Array of Polygon coordinates.
-          *
-          * @name polygons
-          * @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygon coordinates
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the FeatureCollection
-          * @returns {FeatureCollection<Polygon>} Polygon FeatureCollection
-          * @example
-          * var polygons = turf.polygons([
-          *   [[[-5, 52], [-4, 56], [-2, 51], [-7, 54], [-5, 52]]],
-          *   [[[-15, 42], [-14, 46], [-12, 41], [-17, 44], [-15, 42]]],
-          * ]);
-          *
-          * //=polygons
+          * init() initialize streetside.
           */
-
-         function polygons(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
+         init: function init() {
+           if (!_ssCache) {
+             this.reset();
            }
 
-           return featureCollection(coordinates.map(function (coords) {
-             return polygon(coords, properties);
-           }), options);
-         }
+           this.event = utilRebind(this, dispatch$7, 'on');
+         },
 
-         exports.polygons = polygons;
          /**
-          * Creates a {@link LineString} {@link Feature} from an Array of Positions.
-          *
-          * @name lineString
-          * @param {Array<Array<number>>} coordinates an array of Positions
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<LineString>} LineString Feature
-          * @example
-          * var linestring1 = turf.lineString([[-24, 63], [-23, 60], [-25, 65], [-20, 69]], {name: 'line 1'});
-          * var linestring2 = turf.lineString([[-14, 43], [-13, 40], [-15, 45], [-10, 49]], {name: 'line 2'});
-          *
-          * //=linestring1
-          * //=linestring2
+          * reset() reset the cache.
           */
-
-         function lineString(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
-
-           if (coordinates.length < 2) {
-             throw new Error("coordinates must be an array of two or more positions");
+         reset: function reset() {
+           if (_ssCache) {
+             Object.values(_ssCache.bubbles.inflight).forEach(abortRequest$6);
            }
 
-           var geom = {
-             type: "LineString",
-             coordinates: coordinates
+           _ssCache = {
+             bubbles: {
+               inflight: {},
+               loaded: {},
+               nextPage: {},
+               rtree: new RBush(),
+               points: {},
+               leaders: []
+             },
+             sequences: {}
            };
-           return feature(geom, properties, options);
-         }
+         },
 
-         exports.lineString = lineString;
          /**
-          * Creates a {@link LineString} {@link FeatureCollection} from an Array of LineString coordinates.
-          *
-          * @name lineStrings
-          * @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north]
-          * associated with the FeatureCollection
-          * @param {string|number} [options.id] Identifier associated with the FeatureCollection
-          * @returns {FeatureCollection<LineString>} LineString FeatureCollection
-          * @example
-          * var linestrings = turf.lineStrings([
-          *   [[-24, 63], [-23, 60], [-25, 65], [-20, 69]],
-          *   [[-14, 43], [-13, 40], [-15, 45], [-10, 49]]
-          * ]);
-          *
-          * //=linestrings
+          * bubbles()
           */
+         bubbles: function bubbles(projection) {
+           var limit = 5;
+           return searchLimited$2(limit, projection, _ssCache.bubbles.rtree);
+         },
+         cachedImage: function cachedImage(imageKey) {
+           return _ssCache.bubbles.points[imageKey];
+         },
+         sequences: function sequences(projection) {
+           var viewport = projection.clipExtent();
+           var min = [viewport[0][0], viewport[1][1]];
+           var max = [viewport[1][0], viewport[0][1]];
+           var bbox = geoExtent(projection.invert(min), projection.invert(max)).bbox();
+           var seen = {};
+           var results = []; // all sequences for bubbles in viewport
 
-         function lineStrings(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+           _ssCache.bubbles.rtree.search(bbox).forEach(function (d) {
+             var key = d.data.sequenceKey;
 
-           return featureCollection(coordinates.map(function (coords) {
-             return lineString(coords, properties);
-           }), options);
-         }
+             if (key && !seen[key]) {
+               seen[key] = true;
+               results.push(_ssCache.sequences[key].geojson);
+             }
+           });
+
+           return results;
+         },
 
-         exports.lineStrings = lineStrings;
          /**
-          * Takes one or more {@link Feature|Features} and creates a {@link FeatureCollection}.
-          *
-          * @name featureCollection
-          * @param {Feature[]} features input features
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {FeatureCollection} FeatureCollection of Features
-          * @example
-          * var locationA = turf.point([-75.343, 39.984], {name: 'Location A'});
-          * var locationB = turf.point([-75.833, 39.284], {name: 'Location B'});
-          * var locationC = turf.point([-75.534, 39.123], {name: 'Location C'});
-          *
-          * var collection = turf.featureCollection([
-          *   locationA,
-          *   locationB,
-          *   locationC
-          * ]);
-          *
-          * //=collection
+          * loadBubbles()
           */
+         loadBubbles: function loadBubbles(projection, margin) {
+           // by default: request 2 nearby tiles so we can connect sequences.
+           if (margin === undefined) margin = 2;
+           loadTiles$2('bubbles', bubbleApi, projection, margin);
+         },
+         viewer: function viewer() {
+           return _pannellumViewer;
+         },
+         initViewer: function initViewer() {
+           if (!window.pannellum) return;
+           if (_pannellumViewer) return;
+           _currScene += 1;
 
-         function featureCollection(features, options) {
-           if (options === void 0) {
-             options = {};
-           }
+           var sceneID = _currScene.toString();
 
-           var fc = {
-             type: "FeatureCollection"
+           var options = {
+             'default': {
+               firstScene: sceneID
+             },
+             scenes: {}
            };
+           options.scenes[sceneID] = _sceneOptions;
+           _pannellumViewer = window.pannellum.viewer('ideditor-viewer-streetside', options);
+         },
+         ensureViewerLoaded: function ensureViewerLoaded(context) {
+           if (_loadViewerPromise$2) return _loadViewerPromise$2; // create ms-wrapper, a photo wrapper class
 
-           if (options.id) {
-             fc.id = options.id;
-           }
-
-           if (options.bbox) {
-             fc.bbox = options.bbox;
-           }
+           var wrap = context.container().select('.photoviewer').selectAll('.ms-wrapper').data([0]); // inject ms-wrapper into the photoviewer div
+           // (used by all to house each custom photo viewer)
 
-           fc.features = features;
-           return fc;
-         }
+           var wrapEnter = wrap.enter().append('div').attr('class', 'photo-wrapper ms-wrapper').classed('hide', true);
+           var that = this;
+           var pointerPrefix = 'PointerEvent' in window ? 'pointer' : 'mouse'; // inject div to support streetside viewer (pannellum) and attribution line
 
-         exports.featureCollection = featureCollection;
-         /**
-          * Creates a {@link Feature<MultiLineString>} based on a
-          * coordinate array. Properties can be added optionally.
-          *
-          * @name multiLineString
-          * @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<MultiLineString>} a MultiLineString feature
-          * @throws {Error} if no coordinates are passed
-          * @example
-          * var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
-          *
-          * //=multiLine
-          */
+           wrapEnter.append('div').attr('id', 'ideditor-viewer-streetside').on(pointerPrefix + 'down.streetside', function () {
+             select(window).on(pointerPrefix + 'move.streetside', function () {
+               dispatch$7.call('viewerChanged');
+             }, true);
+           }).on(pointerPrefix + 'up.streetside pointercancel.streetside', function () {
+             select(window).on(pointerPrefix + 'move.streetside', null); // continue dispatching events for a few seconds, in case viewer has inertia.
 
-         function multiLineString(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+             var t = timer(function (elapsed) {
+               dispatch$7.call('viewerChanged');
 
-           var geom = {
-             type: "MultiLineString",
-             coordinates: coordinates
-           };
-           return feature(geom, properties, options);
-         }
+               if (elapsed > 2000) {
+                 t.stop();
+               }
+             });
+           }).append('div').attr('class', 'photo-attribution fillD');
+           var controlsEnter = wrapEnter.append('div').attr('class', 'photo-controls-wrap').append('div').attr('class', 'photo-controls');
+           controlsEnter.append('button').on('click.back', step(-1)).html('◄');
+           controlsEnter.append('button').on('click.forward', step(1)).html('►'); // create working canvas for stitching together images
 
-         exports.multiLineString = multiLineString;
-         /**
-          * Creates a {@link Feature<MultiPoint>} based on a
-          * coordinate array. Properties can be added optionally.
-          *
-          * @name multiPoint
-          * @param {Array<Array<number>>} coordinates an array of Positions
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<MultiPoint>} a MultiPoint feature
-          * @throws {Error} if no coordinates are passed
-          * @example
-          * var multiPt = turf.multiPoint([[0,0],[10,10]]);
-          *
-          * //=multiPt
-          */
+           wrap = wrap.merge(wrapEnter).call(setupCanvas, true); // Register viewer resize handler
 
-         function multiPoint(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+           context.ui().photoviewer.on('resize.streetside', function () {
+             if (_pannellumViewer) {
+               _pannellumViewer.resize();
+             }
+           });
+           _loadViewerPromise$2 = new Promise(function (resolve, reject) {
+             var loadedCount = 0;
 
-           var geom = {
-             type: "MultiPoint",
-             coordinates: coordinates
-           };
-           return feature(geom, properties, options);
-         }
+             function loaded() {
+               loadedCount += 1; // wait until both files are loaded
 
-         exports.multiPoint = multiPoint;
-         /**
-          * Creates a {@link Feature<MultiPolygon>} based on a
-          * coordinate array. Properties can be added optionally.
-          *
-          * @name multiPolygon
-          * @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<MultiPolygon>} a multipolygon feature
-          * @throws {Error} if no coordinates are passed
-          * @example
-          * var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
-          *
-          * //=multiPoly
-          *
-          */
+               if (loadedCount === 2) resolve();
+             }
 
-         function multiPolygon(coordinates, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+             var head = select('head'); // load streetside pannellum viewer css
 
-           var geom = {
-             type: "MultiPolygon",
-             coordinates: coordinates
-           };
-           return feature(geom, properties, options);
-         }
+             head.selectAll('#ideditor-streetside-viewercss').data([0]).enter().append('link').attr('id', 'ideditor-streetside-viewercss').attr('rel', 'stylesheet').attr('crossorigin', 'anonymous').attr('href', context.asset(pannellumViewerCSS)).on('load.serviceStreetside', loaded).on('error.serviceStreetside', function () {
+               reject();
+             }); // load streetside pannellum viewer js
 
-         exports.multiPolygon = multiPolygon;
-         /**
-          * Creates a {@link Feature<GeometryCollection>} based on a
-          * coordinate array. Properties can be added optionally.
-          *
-          * @name geometryCollection
-          * @param {Array<Geometry>} geometries an array of GeoJSON Geometries
-          * @param {Object} [properties={}] an Object of key-value pairs to add as properties
-          * @param {Object} [options={}] Optional Parameters
-          * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
-          * @param {string|number} [options.id] Identifier associated with the Feature
-          * @returns {Feature<GeometryCollection>} a GeoJSON GeometryCollection Feature
-          * @example
-          * var pt = turf.geometry("Point", [100, 0]);
-          * var line = turf.geometry("LineString", [[101, 0], [102, 1]]);
-          * var collection = turf.geometryCollection([pt, line]);
-          *
-          * // => collection
-          */
+             head.selectAll('#ideditor-streetside-viewerjs').data([0]).enter().append('script').attr('id', 'ideditor-streetside-viewerjs').attr('crossorigin', 'anonymous').attr('src', context.asset(pannellumViewerJS)).on('load.serviceStreetside', loaded).on('error.serviceStreetside', function () {
+               reject();
+             });
+           })["catch"](function () {
+             _loadViewerPromise$2 = null;
+           });
+           return _loadViewerPromise$2;
 
-         function geometryCollection(geometries, properties, options) {
-           if (options === void 0) {
-             options = {};
-           }
+           function step(stepBy) {
+             return function () {
+               var viewer = context.container().select('.photoviewer');
+               var selected = viewer.empty() ? undefined : viewer.datum();
+               if (!selected) return;
+               var nextID = stepBy === 1 ? selected.ne : selected.pr;
 
-           var geom = {
-             type: "GeometryCollection",
-             geometries: geometries
-           };
-           return feature(geom, properties, options);
-         }
+               var yaw = _pannellumViewer.getYaw();
 
-         exports.geometryCollection = geometryCollection;
-         /**
-          * Round number to precision
-          *
-          * @param {number} num Number
-          * @param {number} [precision=0] Precision
-          * @returns {number} rounded number
-          * @example
-          * turf.round(120.4321)
-          * //=120
-          *
-          * turf.round(120.4321, 2)
-          * //=120.43
-          */
+               var ca = selected.ca + yaw;
+               var origin = selected.loc; // construct a search trapezoid pointing out from current bubble
 
-         function round(num, precision) {
-           if (precision === void 0) {
-             precision = 0;
-           }
+               var meters = 35;
+               var p1 = [origin[0] + geoMetersToLon(meters / 5, origin[1]), origin[1]];
+               var p2 = [origin[0] + geoMetersToLon(meters / 2, origin[1]), origin[1] + geoMetersToLat(meters)];
+               var p3 = [origin[0] - geoMetersToLon(meters / 2, origin[1]), origin[1] + geoMetersToLat(meters)];
+               var p4 = [origin[0] - geoMetersToLon(meters / 5, origin[1]), origin[1]];
+               var poly = [p1, p2, p3, p4, p1]; // rotate it to face forward/backward
 
-           if (precision && !(precision >= 0)) {
-             throw new Error("precision must be a positive number");
-           }
+               var angle = (stepBy === 1 ? ca : ca + 180) * (Math.PI / 180);
+               poly = geoRotate(poly, -angle, origin);
+               var extent = poly.reduce(function (extent, point) {
+                 return extent.extend(geoExtent(point));
+               }, geoExtent()); // find nearest other bubble in the search polygon
 
-           var multiplier = Math.pow(10, precision || 0);
-           return Math.round(num * multiplier) / multiplier;
-         }
+               var minDist = Infinity;
 
-         exports.round = round;
-         /**
-          * Convert a distance measurement (assuming a spherical Earth) from radians to a more friendly unit.
-          * Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
-          *
-          * @name radiansToLength
-          * @param {number} radians in radians across the sphere
-          * @param {string} [units="kilometers"] can be degrees, radians, miles, or kilometers inches, yards, metres,
-          * meters, kilometres, kilometers.
-          * @returns {number} distance
-          */
+               _ssCache.bubbles.rtree.search(extent.bbox()).forEach(function (d) {
+                 if (d.data.key === selected.key) return;
+                 if (!geoPointInPolygon(d.data.loc, poly)) return;
+                 var dist = geoVecLength(d.data.loc, selected.loc);
+                 var theta = selected.ca - d.data.ca;
+                 var minTheta = Math.min(Math.abs(theta), 360 - Math.abs(theta));
 
-         function radiansToLength(radians, units) {
-           if (units === void 0) {
-             units = "kilometers";
-           }
+                 if (minTheta > 20) {
+                   dist += 5; // penalize distance if camera angles don't match
+                 }
 
-           var factor = exports.factors[units];
+                 if (dist < minDist) {
+                   nextID = d.data.key;
+                   minDist = dist;
+                 }
+               });
 
-           if (!factor) {
-             throw new Error(units + " units is invalid");
+               var nextBubble = nextID && that.cachedImage(nextID);
+               if (!nextBubble) return;
+               context.map().centerEase(nextBubble.loc);
+               that.selectImage(context, nextBubble.key).yaw(yaw).showViewer(context);
+             };
            }
+         },
+         yaw: function yaw(_yaw) {
+           if (typeof _yaw !== 'number') return _yaw;
+           _sceneOptions.yaw = _yaw;
+           return this;
+         },
 
-           return radians * factor;
-         }
-
-         exports.radiansToLength = radiansToLength;
          /**
-          * Convert a distance measurement (assuming a spherical Earth) from a real-world unit into radians
-          * Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
-          *
-          * @name lengthToRadians
-          * @param {number} distance in real units
-          * @param {string} [units="kilometers"] can be degrees, radians, miles, or kilometers inches, yards, metres,
-          * meters, kilometres, kilometers.
-          * @returns {number} radians
+          * showViewer()
           */
+         showViewer: function showViewer(context) {
+           var wrap = context.container().select('.photoviewer').classed('hide', false);
+           var isHidden = wrap.selectAll('.photo-wrapper.ms-wrapper.hide').size();
 
-         function lengthToRadians(distance, units) {
-           if (units === void 0) {
-             units = "kilometers";
-           }
-
-           var factor = exports.factors[units];
-
-           if (!factor) {
-             throw new Error(units + " units is invalid");
+           if (isHidden) {
+             wrap.selectAll('.photo-wrapper:not(.ms-wrapper)').classed('hide', true);
+             wrap.selectAll('.photo-wrapper.ms-wrapper').classed('hide', false);
            }
 
-           return distance / factor;
-         }
+           return this;
+         },
 
-         exports.lengthToRadians = lengthToRadians;
          /**
-          * Convert a distance measurement (assuming a spherical Earth) from a real-world unit into degrees
-          * Valid units: miles, nauticalmiles, inches, yards, meters, metres, centimeters, kilometres, feet
-          *
-          * @name lengthToDegrees
-          * @param {number} distance in real units
-          * @param {string} [units="kilometers"] can be degrees, radians, miles, or kilometers inches, yards, metres,
-          * meters, kilometres, kilometers.
-          * @returns {number} degrees
+          * hideViewer()
           */
+         hideViewer: function hideViewer(context) {
+           var viewer = context.container().select('.photoviewer');
+           if (!viewer.empty()) viewer.datum(null);
+           viewer.classed('hide', true).selectAll('.photo-wrapper').classed('hide', true);
+           context.container().selectAll('.viewfield-group, .sequence, .icon-sign').classed('currentView', false);
+           this.updateUrlImage(null);
+           return this.setStyles(context, null, true);
+         },
 
-         function lengthToDegrees(distance, units) {
-           return radiansToDegrees(lengthToRadians(distance, units));
-         }
-
-         exports.lengthToDegrees = lengthToDegrees;
          /**
-          * Converts any bearing angle from the north line direction (positive clockwise)
-          * and returns an angle between 0-360 degrees (positive clockwise), 0 being the north line
-          *
-          * @name bearingToAzimuth
-          * @param {number} bearing angle, between -180 and +180 degrees
-          * @returns {number} angle between 0 and 360 degrees
+          * selectImage().
           */
+         selectImage: function selectImage(context, key) {
+           var that = this;
+           var d = this.cachedImage(key);
+           var viewer = context.container().select('.photoviewer');
+           if (!viewer.empty()) viewer.datum(d);
+           this.setStyles(context, null, true);
+           var wrap = context.container().select('.photoviewer .ms-wrapper');
+           var attribution = wrap.selectAll('.photo-attribution').html('');
+           wrap.selectAll('.pnlm-load-box') // display "loading.."
+           .style('display', 'block');
+           if (!d) return this;
+           this.updateUrlImage(key);
+           _sceneOptions.northOffset = d.ca;
+           var line1 = attribution.append('div').attr('class', 'attribution-row');
+           var hiresDomId = utilUniqueDomId('streetside-hires'); // Add hires checkbox
 
-         function bearingToAzimuth(bearing) {
-           var angle = bearing % 360;
+           var label = line1.append('label').attr('for', hiresDomId).attr('class', 'streetside-hires');
+           label.append('input').attr('type', 'checkbox').attr('id', hiresDomId).property('checked', _hires).on('click', function (d3_event) {
+             d3_event.stopPropagation();
+             _hires = !_hires;
+             _resolution = _hires ? 1024 : 512;
+             wrap.call(setupCanvas, true);
+             var viewstate = {
+               yaw: _pannellumViewer.getYaw(),
+               pitch: _pannellumViewer.getPitch(),
+               hfov: _pannellumViewer.getHfov()
+             };
+             _sceneOptions = Object.assign(_sceneOptions, viewstate);
+             that.selectImage(context, d.key).showViewer(context);
+           });
+           label.append('span').html(_t.html('streetside.hires'));
+           var captureInfo = line1.append('div').attr('class', 'attribution-capture-info'); // Add capture date
 
-           if (angle < 0) {
-             angle += 360;
+           if (d.captured_by) {
+             var yyyy = new Date().getFullYear();
+             captureInfo.append('a').attr('class', 'captured_by').attr('target', '_blank').attr('href', 'https://www.microsoft.com/en-us/maps/streetside').html('©' + yyyy + ' Microsoft');
+             captureInfo.append('span').html('|');
            }
 
-           return angle;
-         }
-
-         exports.bearingToAzimuth = bearingToAzimuth;
-         /**
-          * Converts an angle in radians to degrees
-          *
-          * @name radiansToDegrees
-          * @param {number} radians angle in radians
-          * @returns {number} degrees between 0 and 360 degrees
-          */
+           if (d.captured_at) {
+             captureInfo.append('span').attr('class', 'captured_at').html(localeTimestamp(d.captured_at));
+           } // Add image links
 
-         function radiansToDegrees(radians) {
-           var degrees = radians % (2 * Math.PI);
-           return degrees * 180 / Math.PI;
-         }
 
-         exports.radiansToDegrees = radiansToDegrees;
-         /**
-          * Converts an angle in degrees to radians
-          *
-          * @name degreesToRadians
-          * @param {number} degrees angle between 0 and 360 degrees
-          * @returns {number} angle in radians
-          */
+           var line2 = attribution.append('div').attr('class', 'attribution-row');
+           line2.append('a').attr('class', 'image-view-link').attr('target', '_blank').attr('href', 'https://www.bing.com/maps?cp=' + d.loc[1] + '~' + d.loc[0] + '&lvl=17&dir=' + d.ca + '&style=x&v=2&sV=1').html(_t.html('streetside.view_on_bing'));
+           line2.append('a').attr('class', 'image-report-link').attr('target', '_blank').attr('href', 'https://www.bing.com/maps/privacyreport/streetsideprivacyreport?bubbleid=' + encodeURIComponent(d.key) + '&focus=photo&lat=' + d.loc[1] + '&lng=' + d.loc[0] + '&z=17').html(_t.html('streetside.report'));
+           var bubbleIdQuadKey = d.key.toString(4);
+           var paddingNeeded = 16 - bubbleIdQuadKey.length;
 
-         function degreesToRadians(degrees) {
-           var radians = degrees % 360;
-           return radians * Math.PI / 180;
-         }
+           for (var i = 0; i < paddingNeeded; i++) {
+             bubbleIdQuadKey = '0' + bubbleIdQuadKey;
+           }
 
-         exports.degreesToRadians = degreesToRadians;
-         /**
-          * Converts a length to the requested unit.
-          * Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
-          *
-          * @param {number} length to be converted
-          * @param {Units} [originalUnit="kilometers"] of the length
-          * @param {Units} [finalUnit="kilometers"] returned unit
-          * @returns {number} the converted length
-          */
+           var imgUrlPrefix = streetsideImagesApi + 'hs' + bubbleIdQuadKey;
+           var imgUrlSuffix = '.jpg?g=6338&n=z'; // Cubemap face code order matters here: front=01, right=02, back=03, left=10, up=11, down=12
 
-         function convertLength(length, originalUnit, finalUnit) {
-           if (originalUnit === void 0) {
-             originalUnit = "kilometers";
-           }
+           var faceKeys = ['01', '02', '03', '10', '11', '12']; // Map images to cube faces
 
-           if (finalUnit === void 0) {
-             finalUnit = "kilometers";
-           }
+           var quadKeys = getQuadKeys();
+           var faces = faceKeys.map(function (faceKey) {
+             return quadKeys.map(function (quadKey) {
+               var xy = qkToXY(quadKey);
+               return {
+                 face: faceKey,
+                 url: imgUrlPrefix + faceKey + quadKey + imgUrlSuffix,
+                 x: xy[0],
+                 y: xy[1]
+               };
+             });
+           });
+           loadFaces(faces).then(function () {
+             if (!_pannellumViewer) {
+               that.initViewer();
+             } else {
+               // make a new scene
+               _currScene += 1;
 
-           if (!(length >= 0)) {
-             throw new Error("length must be a positive number");
-           }
+               var sceneID = _currScene.toString();
 
-           return radiansToLength(lengthToRadians(length, originalUnit), finalUnit);
-         }
+               _pannellumViewer.addScene(sceneID, _sceneOptions).loadScene(sceneID); // remove previous scene
 
-         exports.convertLength = convertLength;
-         /**
-          * Converts a area to the requested unit.
-          * Valid units: kilometers, kilometres, meters, metres, centimetres, millimeters, acres, miles, yards, feet, inches
-          * @param {number} area to be converted
-          * @param {Units} [originalUnit="meters"] of the distance
-          * @param {Units} [finalUnit="kilometers"] returned unit
-          * @returns {number} the converted distance
-          */
 
-         function convertArea(area, originalUnit, finalUnit) {
-           if (originalUnit === void 0) {
-             originalUnit = "meters";
-           }
+               if (_currScene > 2) {
+                 sceneID = (_currScene - 1).toString();
 
-           if (finalUnit === void 0) {
-             finalUnit = "kilometers";
+                 _pannellumViewer.removeScene(sceneID);
+               }
+             }
+           });
+           return this;
+         },
+         getSequenceKeyForBubble: function getSequenceKeyForBubble(d) {
+           return d && d.sequenceKey;
+         },
+         // Updates the currently highlighted sequence and selected bubble.
+         // Reset is only necessary when interacting with the viewport because
+         // this implicitly changes the currently selected bubble/sequence
+         setStyles: function setStyles(context, hovered, reset) {
+           if (reset) {
+             // reset all layers
+             context.container().selectAll('.viewfield-group').classed('highlighted', false).classed('hovered', false).classed('currentView', false);
+             context.container().selectAll('.sequence').classed('highlighted', false).classed('currentView', false);
            }
 
-           if (!(area >= 0)) {
-             throw new Error("area must be a positive number");
-           }
+           var hoveredBubbleKey = hovered && hovered.key;
+           var hoveredSequenceKey = this.getSequenceKeyForBubble(hovered);
+           var hoveredSequence = hoveredSequenceKey && _ssCache.sequences[hoveredSequenceKey];
+           var hoveredBubbleKeys = hoveredSequence && hoveredSequence.bubbles.map(function (d) {
+             return d.key;
+           }) || [];
+           var viewer = context.container().select('.photoviewer');
+           var selected = viewer.empty() ? undefined : viewer.datum();
+           var selectedBubbleKey = selected && selected.key;
+           var selectedSequenceKey = this.getSequenceKeyForBubble(selected);
+           var selectedSequence = selectedSequenceKey && _ssCache.sequences[selectedSequenceKey];
+           var selectedBubbleKeys = selectedSequence && selectedSequence.bubbles.map(function (d) {
+             return d.key;
+           }) || []; // highlight sibling viewfields on either the selected or the hovered sequences
 
-           var startFactor = exports.areaFactors[originalUnit];
+           var highlightedBubbleKeys = utilArrayUnion(hoveredBubbleKeys, selectedBubbleKeys);
+           context.container().selectAll('.layer-streetside-images .viewfield-group').classed('highlighted', function (d) {
+             return highlightedBubbleKeys.indexOf(d.key) !== -1;
+           }).classed('hovered', function (d) {
+             return d.key === hoveredBubbleKey;
+           }).classed('currentView', function (d) {
+             return d.key === selectedBubbleKey;
+           });
+           context.container().selectAll('.layer-streetside-images .sequence').classed('highlighted', function (d) {
+             return d.properties.key === hoveredSequenceKey;
+           }).classed('currentView', function (d) {
+             return d.properties.key === selectedSequenceKey;
+           }); // update viewfields if needed
 
-           if (!startFactor) {
-             throw new Error("invalid original units");
-           }
+           context.container().selectAll('.viewfield-group .viewfield').attr('d', viewfieldPath);
 
-           var finalFactor = exports.areaFactors[finalUnit];
+           function viewfieldPath() {
+             var d = this.parentNode.__data__;
 
-           if (!finalFactor) {
-             throw new Error("invalid final units");
+             if (d.pano && d.key !== selectedBubbleKey) {
+               return 'M 8,13 m -10,0 a 10,10 0 1,0 20,0 a 10,10 0 1,0 -20,0';
+             } else {
+               return 'M 6,9 C 8,8.4 8,8.4 10,9 L 16,-2 C 12,-5 4,-5 0,-2 z';
+             }
            }
 
-           return area / startFactor * finalFactor;
-         }
+           return this;
+         },
+         updateUrlImage: function updateUrlImage(imageKey) {
+           if (!window.mocha) {
+             var hash = utilStringQs(window.location.hash);
 
-         exports.convertArea = convertArea;
-         /**
-          * isNumber
-          *
-          * @param {*} num Number to validate
-          * @returns {boolean} true/false
-          * @example
-          * turf.isNumber(123)
-          * //=true
-          * turf.isNumber('foo')
-          * //=false
-          */
+             if (imageKey) {
+               hash.photo = 'streetside/' + imageKey;
+             } else {
+               delete hash.photo;
+             }
 
-         function isNumber(num) {
-           return !isNaN(num) && num !== null && !Array.isArray(num) && !/^\s*$/.test(num);
-         }
+             window.location.replace('#' + utilQsString(hash, true));
+           }
+         },
 
-         exports.isNumber = isNumber;
          /**
-          * isObject
-          *
-          * @param {*} input variable to validate
-          * @returns {boolean} true/false
-          * @example
-          * turf.isObject({elevation: 10})
-          * //=true
-          * turf.isObject('foo')
-          * //=false
+          * cache().
           */
-
-         function isObject(input) {
-           return !!input && input.constructor === Object;
+         cache: function cache() {
+           return _ssCache;
          }
+       };
 
-         exports.isObject = isObject;
-         /**
-          * Validate BBox
-          *
-          * @private
-          * @param {Array<number>} bbox BBox to validate
-          * @returns {void}
-          * @throws Error if BBox is not valid
-          * @example
-          * validateBBox([-180, -40, 110, 50])
-          * //=OK
-          * validateBBox([-180, -40])
-          * //=Error
-          * validateBBox('Foo')
-          * //=Error
-          * validateBBox(5)
-          * //=Error
-          * validateBBox(null)
-          * //=Error
-          * validateBBox(undefined)
-          * //=Error
-          */
+       var _apibase$1 = 'https://taginfo.openstreetmap.org/api/4/';
+       var _inflight$2 = {};
+       var _popularKeys = {};
+       var _taginfoCache = {};
+       var tag_sorts = {
+         point: 'count_nodes',
+         vertex: 'count_nodes',
+         area: 'count_ways',
+         line: 'count_ways'
+       };
+       var tag_sort_members = {
+         point: 'count_node_members',
+         vertex: 'count_node_members',
+         area: 'count_way_members',
+         line: 'count_way_members',
+         relation: 'count_relation_members'
+       };
+       var tag_filters = {
+         point: 'nodes',
+         vertex: 'nodes',
+         area: 'ways',
+         line: 'ways'
+       };
+       var tag_members_fractions = {
+         point: 'count_node_members_fraction',
+         vertex: 'count_node_members_fraction',
+         area: 'count_way_members_fraction',
+         line: 'count_way_members_fraction',
+         relation: 'count_relation_members_fraction'
+       };
 
-         function validateBBox(bbox) {
-           if (!bbox) {
-             throw new Error("bbox is required");
-           }
+       function sets(params, n, o) {
+         if (params.geometry && o[params.geometry]) {
+           params[n] = o[params.geometry];
+         }
 
-           if (!Array.isArray(bbox)) {
-             throw new Error("bbox must be an Array");
-           }
+         return params;
+       }
 
-           if (bbox.length !== 4 && bbox.length !== 6) {
-             throw new Error("bbox must be an Array of 4 or 6 numbers");
-           }
+       function setFilter(params) {
+         return sets(params, 'filter', tag_filters);
+       }
 
-           bbox.forEach(function (num) {
-             if (!isNumber(num)) {
-               throw new Error("bbox must only contain numbers");
-             }
-           });
-         }
+       function setSort(params) {
+         return sets(params, 'sortname', tag_sorts);
+       }
 
-         exports.validateBBox = validateBBox;
-         /**
-          * Validate Id
-          *
-          * @private
-          * @param {string|number} id Id to validate
-          * @returns {void}
-          * @throws Error if Id is not valid
-          * @example
-          * validateId([-180, -40, 110, 50])
-          * //=Error
-          * validateId([-180, -40])
-          * //=Error
-          * validateId('Foo')
-          * //=OK
-          * validateId(5)
-          * //=OK
-          * validateId(null)
-          * //=Error
-          * validateId(undefined)
-          * //=Error
-          */
+       function setSortMembers(params) {
+         return sets(params, 'sortname', tag_sort_members);
+       }
 
-         function validateId(id) {
-           if (!id) {
-             throw new Error("id is required");
-           }
+       function clean(params) {
+         return utilObjectOmit(params, ['geometry', 'debounce']);
+       }
 
-           if (["string", "number"].indexOf(_typeof(id)) === -1) {
-             throw new Error("id must be a number or a string");
-           }
-         }
+       function filterKeys(type) {
+         var count_type = type ? 'count_' + type : 'count_all';
+         return function (d) {
+           return parseFloat(d[count_type]) > 2500 || d.in_wiki;
+         };
+       }
 
-         exports.validateId = validateId; // Deprecated methods
+       function filterMultikeys(prefix) {
+         return function (d) {
+           // d.key begins with prefix, and d.key contains no additional ':'s
+           var re = new RegExp('^' + prefix + '(.*)$');
+           var matches = d.key.match(re) || [];
+           return matches.length === 2 && matches[1].indexOf(':') === -1;
+         };
+       }
 
-         function radians2degrees() {
-           throw new Error("method has been renamed to `radiansToDegrees`");
-         }
+       function filterValues(allowUpperCase) {
+         return function (d) {
+           if (d.value.match(/[;,]/) !== null) return false; // exclude some punctuation
 
-         exports.radians2degrees = radians2degrees;
+           if (!allowUpperCase && d.value.match(/[A-Z*]/) !== null) return false; // exclude uppercase letters
 
-         function degrees2radians() {
-           throw new Error("method has been renamed to `degreesToRadians`");
-         }
+           return parseFloat(d.fraction) > 0.0;
+         };
+       }
 
-         exports.degrees2radians = degrees2radians;
+       function filterRoles(geometry) {
+         return function (d) {
+           if (d.role === '') return false; // exclude empty role
 
-         function distanceToDegrees() {
-           throw new Error("method has been renamed to `lengthToDegrees`");
-         }
+           if (d.role.match(/[A-Z*;,]/) !== null) return false; // exclude uppercase letters and some punctuation
 
-         exports.distanceToDegrees = distanceToDegrees;
+           return parseFloat(d[tag_members_fractions[geometry]]) > 0.0;
+         };
+       }
 
-         function distanceToRadians() {
-           throw new Error("method has been renamed to `lengthToRadians`");
-         }
+       function valKey(d) {
+         return {
+           value: d.key,
+           title: d.key
+         };
+       }
 
-         exports.distanceToRadians = distanceToRadians;
+       function valKeyDescription(d) {
+         var obj = {
+           value: d.value,
+           title: d.description || d.value
+         };
 
-         function radiansToDistance() {
-           throw new Error("method has been renamed to `radiansToLength`");
+         if (d.count) {
+           obj.count = d.count;
          }
 
-         exports.radiansToDistance = radiansToDistance;
+         return obj;
+       }
 
-         function bearingToAngle() {
-           throw new Error("method has been renamed to `bearingToAzimuth`");
-         }
+       function roleKey(d) {
+         return {
+           value: d.role,
+           title: d.role
+         };
+       } // sort keys with ':' lower than keys without ':'
 
-         exports.bearingToAngle = bearingToAngle;
 
-         function convertDistance() {
-           throw new Error("method has been renamed to `convertLength`");
-         }
+       function sortKeys(a, b) {
+         return a.key.indexOf(':') === -1 && b.key.indexOf(':') !== -1 ? -1 : a.key.indexOf(':') !== -1 && b.key.indexOf(':') === -1 ? 1 : 0;
+       }
 
-         exports.convertDistance = convertDistance;
+       var debouncedRequest$1 = debounce(request$1, 300, {
+         leading: false
        });
 
-       var invariant = createCommonjsModule(function (module, exports) {
-
-         Object.defineProperty(exports, "__esModule", {
-           value: true
+       function request$1(url, params, exactMatch, callback, loaded) {
+         if (_inflight$2[url]) return;
+         if (checkCache(url, params, exactMatch, callback)) return;
+         var controller = new AbortController();
+         _inflight$2[url] = controller;
+         d3_json(url, {
+           signal: controller.signal
+         }).then(function (result) {
+           delete _inflight$2[url];
+           if (loaded) loaded(null, result);
+         })["catch"](function (err) {
+           delete _inflight$2[url];
+           if (err.name === 'AbortError') return;
+           if (loaded) loaded(err.message);
          });
-         /**
-          * Unwrap a coordinate from a Point Feature, Geometry or a single coordinate.
-          *
-          * @name getCoord
-          * @param {Array<number>|Geometry<Point>|Feature<Point>} coord GeoJSON Point or an Array of numbers
-          * @returns {Array<number>} coordinates
-          * @example
-          * var pt = turf.point([10, 10]);
-          *
-          * var coord = turf.getCoord(pt);
-          * //= [10, 10]
-          */
+       }
 
-         function getCoord(coord) {
-           if (!coord) {
-             throw new Error("coord is required");
-           }
+       function checkCache(url, params, exactMatch, callback) {
+         var rp = params.rp || 25;
+         var testQuery = params.query || '';
+         var testUrl = url;
 
-           if (!Array.isArray(coord)) {
-             if (coord.type === "Feature" && coord.geometry !== null && coord.geometry.type === "Point") {
-               return coord.geometry.coordinates;
-             }
+         do {
+           var hit = _taginfoCache[testUrl]; // exact match, or shorter match yielding fewer than max results (rp)
 
-             if (coord.type === "Point") {
-               return coord.coordinates;
-             }
-           }
+           if (hit && (url === testUrl || hit.length < rp)) {
+             callback(null, hit);
+             return true;
+           } // don't try to shorten the query
 
-           if (Array.isArray(coord) && coord.length >= 2 && !Array.isArray(coord[0]) && !Array.isArray(coord[1])) {
-             return coord;
-           }
 
-           throw new Error("coord must be GeoJSON Point or an Array of numbers");
-         }
+           if (exactMatch || !testQuery.length) return false; // do shorten the query to see if we already have a cached result
+           // that has returned fewer than max results (rp)
 
-         exports.getCoord = getCoord;
-         /**
-          * Unwrap coordinates from a Feature, Geometry Object or an Array
-          *
-          * @name getCoords
-          * @param {Array<any>|Geometry|Feature} coords Feature, Geometry Object or an Array
-          * @returns {Array<any>} coordinates
-          * @example
-          * var poly = turf.polygon([[[119.32, -8.7], [119.55, -8.69], [119.51, -8.54], [119.32, -8.7]]]);
-          *
-          * var coords = turf.getCoords(poly);
-          * //= [[[119.32, -8.7], [119.55, -8.69], [119.51, -8.54], [119.32, -8.7]]]
-          */
+           testQuery = testQuery.slice(0, -1);
+           testUrl = url.replace(/&query=(.*?)&/, '&query=' + testQuery + '&');
+         } while (testQuery.length >= 0);
 
-         function getCoords(coords) {
-           if (Array.isArray(coords)) {
-             return coords;
-           } // Feature
+         return false;
+       }
+
+       var serviceTaginfo = {
+         init: function init() {
+           _inflight$2 = {};
+           _taginfoCache = {};
+           _popularKeys = {
+             // manually exclude some keys – #5377, #7485
+             postal_code: true,
+             full_name: true,
+             loc_name: true,
+             reg_name: true,
+             short_name: true,
+             sorting_name: true,
+             artist_name: true,
+             nat_name: true,
+             long_name: true,
+             'bridge:name': true
+           }; // Fetch popular keys.  We'll exclude these from `values`
+           // lookups because they stress taginfo, and they aren't likely
+           // to yield meaningful autocomplete results.. see #3955
 
+           var params = {
+             rp: 100,
+             sortname: 'values_all',
+             sortorder: 'desc',
+             page: 1,
+             debounce: false,
+             lang: _mainLocalizer.languageCode()
+           };
+           this.keys(params, function (err, data) {
+             if (err) return;
+             data.forEach(function (d) {
+               if (d.value === 'opening_hours') return; // exception
 
-           if (coords.type === "Feature") {
-             if (coords.geometry !== null) {
-               return coords.geometry.coordinates;
+               _popularKeys[d.value] = true;
+             });
+           });
+         },
+         reset: function reset() {
+           Object.values(_inflight$2).forEach(function (controller) {
+             controller.abort();
+           });
+           _inflight$2 = {};
+         },
+         keys: function keys(params, callback) {
+           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
+           params = clean(setSort(params));
+           params = Object.assign({
+             rp: 10,
+             sortname: 'count_all',
+             sortorder: 'desc',
+             page: 1,
+             lang: _mainLocalizer.languageCode()
+           }, params);
+           var url = _apibase$1 + 'keys/all?' + utilQsString(params);
+           doRequest(url, params, false, callback, function (err, d) {
+             if (err) {
+               callback(err);
+             } else {
+               var f = filterKeys(params.filter);
+               var result = d.data.filter(f).sort(sortKeys).map(valKey);
+               _taginfoCache[url] = result;
+               callback(null, result);
              }
-           } else {
-             // Geometry
-             if (coords.coordinates) {
-               return coords.coordinates;
+           });
+         },
+         multikeys: function multikeys(params, callback) {
+           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
+           params = clean(setSort(params));
+           params = Object.assign({
+             rp: 25,
+             sortname: 'count_all',
+             sortorder: 'desc',
+             page: 1,
+             lang: _mainLocalizer.languageCode()
+           }, params);
+           var prefix = params.query;
+           var url = _apibase$1 + 'keys/all?' + utilQsString(params);
+           doRequest(url, params, true, callback, function (err, d) {
+             if (err) {
+               callback(err);
+             } else {
+               var f = filterMultikeys(prefix);
+               var result = d.data.filter(f).map(valKey);
+               _taginfoCache[url] = result;
+               callback(null, result);
              }
-           }
-
-           throw new Error("coords must be GeoJSON Feature, Geometry Object or an Array");
-         }
-
-         exports.getCoords = getCoords;
-         /**
-          * Checks if coordinates contains a number
-          *
-          * @name containsNumber
-          * @param {Array<any>} coordinates GeoJSON Coordinates
-          * @returns {boolean} true if Array contains a number
-          */
+           });
+         },
+         values: function values(params, callback) {
+           // Exclude popular keys from values lookups.. see #3955
+           var key = params.key;
 
-         function containsNumber(coordinates) {
-           if (coordinates.length > 1 && helpers$1.isNumber(coordinates[0]) && helpers$1.isNumber(coordinates[1])) {
-             return true;
+           if (key && _popularKeys[key]) {
+             callback(null, []);
+             return;
            }
 
-           if (Array.isArray(coordinates[0]) && coordinates[0].length) {
-             return containsNumber(coordinates[0]);
+           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
+           params = clean(setSort(setFilter(params)));
+           params = Object.assign({
+             rp: 25,
+             sortname: 'count_all',
+             sortorder: 'desc',
+             page: 1,
+             lang: _mainLocalizer.languageCode()
+           }, params);
+           var url = _apibase$1 + 'key/values?' + utilQsString(params);
+           doRequest(url, params, false, callback, function (err, d) {
+             if (err) {
+               callback(err);
+             } else {
+               // In most cases we prefer taginfo value results with lowercase letters.
+               // A few OSM keys expect values to contain uppercase values (see #3377).
+               // This is not an exhaustive list (e.g. `name` also has uppercase values)
+               // but these are the fields where taginfo value lookup is most useful.
+               var re = /network|taxon|genus|species|brand|grape_variety|royal_cypher|listed_status|booth|rating|stars|:output|_hours|_times|_ref|manufacturer|country|target|brewery/;
+               var allowUpperCase = re.test(params.key);
+               var f = filterValues(allowUpperCase);
+               var result = d.data.filter(f).map(valKeyDescription);
+               _taginfoCache[url] = result;
+               callback(null, result);
+             }
+           });
+         },
+         roles: function roles(params, callback) {
+           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
+           var geometry = params.geometry;
+           params = clean(setSortMembers(params));
+           params = Object.assign({
+             rp: 25,
+             sortname: 'count_all_members',
+             sortorder: 'desc',
+             page: 1,
+             lang: _mainLocalizer.languageCode()
+           }, params);
+           var url = _apibase$1 + 'relation/roles?' + utilQsString(params);
+           doRequest(url, params, true, callback, function (err, d) {
+             if (err) {
+               callback(err);
+             } else {
+               var f = filterRoles(geometry);
+               var result = d.data.filter(f).map(roleKey);
+               _taginfoCache[url] = result;
+               callback(null, result);
+             }
+           });
+         },
+         docs: function docs(params, callback) {
+           var doRequest = params.debounce ? debouncedRequest$1 : request$1;
+           params = clean(setSort(params));
+           var path = 'key/wiki_pages?';
+
+           if (params.value) {
+             path = 'tag/wiki_pages?';
+           } else if (params.rtype) {
+             path = 'relation/wiki_pages?';
            }
 
-           throw new Error("coordinates must only contain numbers");
+           var url = _apibase$1 + path + utilQsString(params);
+           doRequest(url, params, true, callback, function (err, d) {
+             if (err) {
+               callback(err);
+             } else {
+               _taginfoCache[url] = d.data;
+               callback(null, d.data);
+             }
+           });
+         },
+         apibase: function apibase(_) {
+           if (!arguments.length) return _apibase$1;
+           _apibase$1 = _;
+           return this;
          }
+       };
 
-         exports.containsNumber = containsNumber;
-         /**
-          * Enforce expectations about types of GeoJSON objects for Turf.
-          *
-          * @name geojsonType
-          * @param {GeoJSON} value any GeoJSON object
-          * @param {string} type expected GeoJSON type
-          * @param {string} name name of calling function
-          * @throws {Error} if value is not the expected type.
-          */
-
-         function geojsonType(value, type, name) {
-           if (!type || !name) {
-             throw new Error("type and name required");
-           }
+       /**
+        * Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
+        *
+        * @name feature
+        * @param {Geometry} geometry input geometry
+        * @param {Object} [properties={}] an Object of key-value pairs to add as properties
+        * @param {Object} [options={}] Optional Parameters
+        * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
+        * @param {string|number} [options.id] Identifier associated with the Feature
+        * @returns {Feature} a GeoJSON Feature
+        * @example
+        * var geometry = {
+        *   "type": "Point",
+        *   "coordinates": [110, 50]
+        * };
+        *
+        * var feature = turf.feature(geometry);
+        *
+        * //=feature
+        */
 
-           if (!value || value.type !== type) {
-             throw new Error("Invalid input to " + name + ": must be a " + type + ", given " + value.type);
-           }
+       function feature(geom, properties, options) {
+         if (options === void 0) {
+           options = {};
          }
 
-         exports.geojsonType = geojsonType;
-         /**
-          * Enforce expectations about types of {@link Feature} inputs for Turf.
-          * Internally this uses {@link geojsonType} to judge geometry types.
-          *
-          * @name featureOf
-          * @param {Feature} feature a feature with an expected geometry type
-          * @param {string} type expected GeoJSON type
-          * @param {string} name name of calling function
-          * @throws {Error} error if value is not the expected type.
-          */
+         var feat = {
+           type: "Feature"
+         };
 
-         function featureOf(feature, type, name) {
-           if (!feature) {
-             throw new Error("No feature passed");
-           }
+         if (options.id === 0 || options.id) {
+           feat.id = options.id;
+         }
 
-           if (!name) {
-             throw new Error(".featureOf() requires a name");
-           }
+         if (options.bbox) {
+           feat.bbox = options.bbox;
+         }
 
-           if (!feature || feature.type !== "Feature" || !feature.geometry) {
-             throw new Error("Invalid input to " + name + ", Feature with geometry required");
-           }
+         feat.properties = properties || {};
+         feat.geometry = geom;
+         return feat;
+       }
+       /**
+        * Creates a {@link Polygon} {@link Feature} from an Array of LinearRings.
+        *
+        * @name polygon
+        * @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
+        * @param {Object} [properties={}] an Object of key-value pairs to add as properties
+        * @param {Object} [options={}] Optional Parameters
+        * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
+        * @param {string|number} [options.id] Identifier associated with the Feature
+        * @returns {Feature<Polygon>} Polygon Feature
+        * @example
+        * var polygon = turf.polygon([[[-5, 52], [-4, 56], [-2, 51], [-7, 54], [-5, 52]]], { name: 'poly1' });
+        *
+        * //=polygon
+        */
 
-           if (!feature.geometry || feature.geometry.type !== type) {
-             throw new Error("Invalid input to " + name + ": must be a " + type + ", given " + feature.geometry.type);
-           }
+       function polygon(coordinates, properties, options) {
+         if (options === void 0) {
+           options = {};
          }
 
-         exports.featureOf = featureOf;
-         /**
-          * Enforce expectations about types of {@link FeatureCollection} inputs for Turf.
-          * Internally this uses {@link geojsonType} to judge geometry types.
-          *
-          * @name collectionOf
-          * @param {FeatureCollection} featureCollection a FeatureCollection for which features will be judged
-          * @param {string} type expected GeoJSON type
-          * @param {string} name name of calling function
-          * @throws {Error} if value is not the expected type.
-          */
-
-         function collectionOf(featureCollection, type, name) {
-           if (!featureCollection) {
-             throw new Error("No featureCollection passed");
-           }
+         for (var _i = 0, coordinates_1 = coordinates; _i < coordinates_1.length; _i++) {
+           var ring = coordinates_1[_i];
 
-           if (!name) {
-             throw new Error(".collectionOf() requires a name");
+           if (ring.length < 4) {
+             throw new Error("Each LinearRing of a Polygon must have 4 or more Positions.");
            }
 
-           if (!featureCollection || featureCollection.type !== "FeatureCollection") {
-             throw new Error("Invalid input to " + name + ", FeatureCollection required");
+           for (var j = 0; j < ring[ring.length - 1].length; j++) {
+             // Check if first point of Polygon contains two numbers
+             if (ring[ring.length - 1][j] !== ring[0][j]) {
+               throw new Error("First and last Position are not equivalent.");
+             }
            }
+         }
 
-           for (var _i = 0, _a = featureCollection.features; _i < _a.length; _i++) {
-             var feature = _a[_i];
-
-             if (!feature || feature.type !== "Feature" || !feature.geometry) {
-               throw new Error("Invalid input to " + name + ", Feature with geometry required");
-             }
+         var geom = {
+           type: "Polygon",
+           coordinates: coordinates
+         };
+         return feature(geom, properties, options);
+       }
+       /**
+        * Creates a {@link LineString} {@link Feature} from an Array of Positions.
+        *
+        * @name lineString
+        * @param {Array<Array<number>>} coordinates an array of Positions
+        * @param {Object} [properties={}] an Object of key-value pairs to add as properties
+        * @param {Object} [options={}] Optional Parameters
+        * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
+        * @param {string|number} [options.id] Identifier associated with the Feature
+        * @returns {Feature<LineString>} LineString Feature
+        * @example
+        * var linestring1 = turf.lineString([[-24, 63], [-23, 60], [-25, 65], [-20, 69]], {name: 'line 1'});
+        * var linestring2 = turf.lineString([[-14, 43], [-13, 40], [-15, 45], [-10, 49]], {name: 'line 2'});
+        *
+        * //=linestring1
+        * //=linestring2
+        */
 
-             if (!feature.geometry || feature.geometry.type !== type) {
-               throw new Error("Invalid input to " + name + ": must be a " + type + ", given " + feature.geometry.type);
-             }
-           }
+       function lineString(coordinates, properties, options) {
+         if (options === void 0) {
+           options = {};
          }
 
-         exports.collectionOf = collectionOf;
-         /**
-          * Get Geometry from Feature or Geometry Object
-          *
-          * @param {Feature|Geometry} geojson GeoJSON Feature or Geometry Object
-          * @returns {Geometry|null} GeoJSON Geometry Object
-          * @throws {Error} if geojson is not a Feature or Geometry Object
-          * @example
-          * var point = {
-          *   "type": "Feature",
-          *   "properties": {},
-          *   "geometry": {
-          *     "type": "Point",
-          *     "coordinates": [110, 40]
-          *   }
-          * }
-          * var geom = turf.getGeom(point)
-          * //={"type": "Point", "coordinates": [110, 40]}
-          */
+         if (coordinates.length < 2) {
+           throw new Error("coordinates must be an array of two or more positions");
+         }
 
-         function getGeom(geojson) {
-           if (geojson.type === "Feature") {
-             return geojson.geometry;
-           }
+         var geom = {
+           type: "LineString",
+           coordinates: coordinates
+         };
+         return feature(geom, properties, options);
+       }
+       /**
+        * Creates a {@link Feature<MultiLineString>} based on a
+        * coordinate array. Properties can be added optionally.
+        *
+        * @name multiLineString
+        * @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
+        * @param {Object} [properties={}] an Object of key-value pairs to add as properties
+        * @param {Object} [options={}] Optional Parameters
+        * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
+        * @param {string|number} [options.id] Identifier associated with the Feature
+        * @returns {Feature<MultiLineString>} a MultiLineString feature
+        * @throws {Error} if no coordinates are passed
+        * @example
+        * var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
+        *
+        * //=multiLine
+        */
 
-           return geojson;
+       function multiLineString(coordinates, properties, options) {
+         if (options === void 0) {
+           options = {};
          }
 
-         exports.getGeom = getGeom;
-         /**
-          * Get GeoJSON object's type, Geometry type is prioritize.
-          *
-          * @param {GeoJSON} geojson GeoJSON object
-          * @param {string} [name="geojson"] name of the variable to display in error message
-          * @returns {string} GeoJSON type
-          * @example
-          * var point = {
-          *   "type": "Feature",
-          *   "properties": {},
-          *   "geometry": {
-          *     "type": "Point",
-          *     "coordinates": [110, 40]
-          *   }
-          * }
-          * var geom = turf.getType(point)
-          * //="Point"
-          */
+         var geom = {
+           type: "MultiLineString",
+           coordinates: coordinates
+         };
+         return feature(geom, properties, options);
+       }
+       /**
+        * Creates a {@link Feature<MultiPolygon>} based on a
+        * coordinate array. Properties can be added optionally.
+        *
+        * @name multiPolygon
+        * @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
+        * @param {Object} [properties={}] an Object of key-value pairs to add as properties
+        * @param {Object} [options={}] Optional Parameters
+        * @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
+        * @param {string|number} [options.id] Identifier associated with the Feature
+        * @returns {Feature<MultiPolygon>} a multipolygon feature
+        * @throws {Error} if no coordinates are passed
+        * @example
+        * var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
+        *
+        * //=multiPoly
+        *
+        */
 
-         function getType(geojson, name) {
-           if (geojson.type === "FeatureCollection") {
-             return "FeatureCollection";
-           }
+       function multiPolygon(coordinates, properties, options) {
+         if (options === void 0) {
+           options = {};
+         }
 
-           if (geojson.type === "GeometryCollection") {
-             return "GeometryCollection";
-           }
+         var geom = {
+           type: "MultiPolygon",
+           coordinates: coordinates
+         };
+         return feature(geom, properties, options);
+       }
 
-           if (geojson.type === "Feature" && geojson.geometry !== null) {
-             return geojson.geometry.type;
-           }
+       /**
+        * Get Geometry from Feature or Geometry Object
+        *
+        * @param {Feature|Geometry} geojson GeoJSON Feature or Geometry Object
+        * @returns {Geometry|null} GeoJSON Geometry Object
+        * @throws {Error} if geojson is not a Feature or Geometry Object
+        * @example
+        * var point = {
+        *   "type": "Feature",
+        *   "properties": {},
+        *   "geometry": {
+        *     "type": "Point",
+        *     "coordinates": [110, 40]
+        *   }
+        * }
+        * var geom = turf.getGeom(point)
+        * //={"type": "Point", "coordinates": [110, 40]}
+        */
 
-           return geojson.type;
+       function getGeom(geojson) {
+         if (geojson.type === "Feature") {
+           return geojson.geometry;
          }
 
-         exports.getType = getType;
-       });
+         return geojson;
+       }
 
-       var lineclip_1 = lineclip;
-       var _default = lineclip;
-       lineclip.polyline = lineclip;
-       lineclip.polygon = polygonclip; // Cohen-Sutherland line clippign algorithm, adapted to efficiently
+       // Cohen-Sutherland line clippign algorithm, adapted to efficiently
        // handle polylines rather than just segments
-
        function lineclip(points, bbox, result) {
          var len = points.length,
              codeA = bitCode(points[0], bbox),
          return result;
        } // Sutherland-Hodgeman polygon clipping algorithm
 
-
        function polygonclip(points, bbox) {
          var result, edge, prev, prevInside, i, p, inside; // clip against each side of the clip rectangle
 
          return result;
        } // intersect a segment against one of the 4 lines that make up the bbox
 
-
        function intersect(a, b, edge, bbox) {
-         return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox[3] - a[1]) / (b[1] - a[1]), bbox[3]] // top
-         edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox[1] - a[1]) / (b[1] - a[1]), bbox[1]] : // bottom
-         edge & 2 ? [bbox[2], a[1] + (b[1] - a[1]) * (bbox[2] - a[0]) / (b[0] - a[0])] : // right
-         edge & 1 ? [bbox[0], a[1] + (b[1] - a[1]) * (bbox[0] - a[0]) / (b[0] - a[0])] : // left
-         null;
+         return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox[3] - a[1]) / (b[1] - a[1]), bbox[3]] // top
+         : edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox[1] - a[1]) / (b[1] - a[1]), bbox[1]] // bottom
+         : edge & 2 ? [bbox[2], a[1] + (b[1] - a[1]) * (bbox[2] - a[0]) / (b[0] - a[0])] // right
+         : edge & 1 ? [bbox[0], a[1] + (b[1] - a[1]) * (bbox[0] - a[0]) / (b[0] - a[0])] // left
+         null;
        } // bit code reflects the point position relative to the bbox:
        //         left  mid  right
        //    top  1001  1000  1010
 
          return code;
        }
-       lineclip_1["default"] = _default;
-
-       var bboxClip_1 = createCommonjsModule(function (module, exports) {
-
-         var __importStar = commonjsGlobal && commonjsGlobal.__importStar || function (mod) {
-           if (mod && mod.__esModule) return mod;
-           var result = {};
-           if (mod != null) for (var k in mod) {
-             if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-           }
-           result["default"] = mod;
-           return result;
-         };
-
-         Object.defineProperty(exports, "__esModule", {
-           value: true
-         });
-
-         var lineclip = __importStar(lineclip_1);
-         /**
-          * Takes a {@link Feature} and a bbox and clips the feature to the bbox using
-          * [lineclip](https://github.com/mapbox/lineclip).
-          * May result in degenerate edges when clipping Polygons.
-          *
-          * @name bboxClip
-          * @param {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} feature feature to clip to the bbox
-          * @param {BBox} bbox extent in [minX, minY, maxX, maxY] order
-          * @returns {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} clipped Feature
-          * @example
-          * var bbox = [0, 0, 10, 10];
-          * var poly = turf.polygon([[[2, 2], [8, 4], [12, 8], [3, 7], [2, 2]]]);
-          *
-          * var clipped = turf.bboxClip(poly, bbox);
-          *
-          * //addToMap
-          * var addToMap = [bbox, poly, clipped]
-          */
 
+       /**
+        * Takes a {@link Feature} and a bbox and clips the feature to the bbox using
+        * [lineclip](https://github.com/mapbox/lineclip).
+        * May result in degenerate edges when clipping Polygons.
+        *
+        * @name bboxClip
+        * @param {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} feature feature to clip to the bbox
+        * @param {BBox} bbox extent in [minX, minY, maxX, maxY] order
+        * @returns {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} clipped Feature
+        * @example
+        * var bbox = [0, 0, 10, 10];
+        * var poly = turf.polygon([[[2, 2], [8, 4], [12, 8], [3, 7], [2, 2]]]);
+        *
+        * var clipped = turf.bboxClip(poly, bbox);
+        *
+        * //addToMap
+        * var addToMap = [bbox, poly, clipped]
+        */
 
-         function bboxClip(feature, bbox) {
-           var geom = invariant.getGeom(feature);
-           var type = geom.type;
-           var properties = feature.type === "Feature" ? feature.properties : {};
-           var coords = geom.coordinates;
+       function bboxClip(feature, bbox) {
+         var geom = getGeom(feature);
+         var type = geom.type;
+         var properties = feature.type === "Feature" ? feature.properties : {};
+         var coords = geom.coordinates;
 
-           switch (type) {
-             case "LineString":
-             case "MultiLineString":
-               var lines_1 = [];
+         switch (type) {
+           case "LineString":
+           case "MultiLineString":
+             var lines_1 = [];
 
-               if (type === "LineString") {
-                 coords = [coords];
-               }
+             if (type === "LineString") {
+               coords = [coords];
+             }
 
-               coords.forEach(function (line) {
-                 lineclip.polyline(line, bbox, lines_1);
-               });
+             coords.forEach(function (line) {
+               lineclip(line, bbox, lines_1);
+             });
 
-               if (lines_1.length === 1) {
-                 return helpers$1.lineString(lines_1[0], properties);
-               }
+             if (lines_1.length === 1) {
+               return lineString(lines_1[0], properties);
+             }
 
-               return helpers$1.multiLineString(lines_1, properties);
+             return multiLineString(lines_1, properties);
 
-             case "Polygon":
-               return helpers$1.polygon(clipPolygon(coords, bbox), properties);
+           case "Polygon":
+             return polygon(clipPolygon(coords, bbox), properties);
 
-             case "MultiPolygon":
-               return helpers$1.multiPolygon(coords.map(function (poly) {
-                 return clipPolygon(poly, bbox);
-               }), properties);
+           case "MultiPolygon":
+             return multiPolygon(coords.map(function (poly) {
+               return clipPolygon(poly, bbox);
+             }), properties);
 
-             default:
-               throw new Error("geometry " + type + " not supported");
-           }
+           default:
+             throw new Error("geometry " + type + " not supported");
          }
+       }
 
-         exports["default"] = bboxClip;
-
-         function clipPolygon(rings, bbox) {
-           var outRings = [];
+       function clipPolygon(rings, bbox) {
+         var outRings = [];
 
-           for (var _i = 0, rings_1 = rings; _i < rings_1.length; _i++) {
-             var ring = rings_1[_i];
-             var clipped = lineclip.polygon(ring, bbox);
+         for (var _i = 0, rings_1 = rings; _i < rings_1.length; _i++) {
+           var ring = rings_1[_i];
+           var clipped = polygonclip(ring, bbox);
 
-             if (clipped.length > 0) {
-               if (clipped[0][0] !== clipped[clipped.length - 1][0] || clipped[0][1] !== clipped[clipped.length - 1][1]) {
-                 clipped.push(clipped[0]);
-               }
+           if (clipped.length > 0) {
+             if (clipped[0][0] !== clipped[clipped.length - 1][0] || clipped[0][1] !== clipped[clipped.length - 1][1]) {
+               clipped.push(clipped[0]);
+             }
 
-               if (clipped.length >= 4) {
-                 outRings.push(clipped);
-               }
+             if (clipped.length >= 4) {
+               outRings.push(clipped);
              }
            }
-
-           return outRings;
          }
-       });
-       var turf_bboxClip = /*@__PURE__*/getDefaultExportFromCjs(bboxClip_1);
+
+         return outRings;
+       }
 
        var fastJsonStableStringify = function fastJsonStableStringify(data, opts) {
          if (!opts) opts = {};
             * @return {Boolean}
             */
 
+         }, {
+           key: "inResult",
+           get: function get() {
+             return this.resultTransition !== 0;
+           }
          }, {
            key: "clone",
            value: function clone() {
              copy.otherInOut = this.otherInOut;
              return copy;
            }
-         }, {
-           key: "inResult",
-           get: function get() {
-             return this.resultTransition !== 0;
-           }
          }]);
 
          return SweepEvent;
        }
 
        var tinyqueue = TinyQueue;
-       var _default$1 = TinyQueue;
+       var _default = TinyQueue;
 
        function TinyQueue(data, compare) {
          if (!(this instanceof TinyQueue)) return new TinyQueue(data, compare);
            data[pos] = item;
          }
        };
-       tinyqueue["default"] = _default$1;
+       tinyqueue["default"] = _default;
 
        var max$5 = Math.max;
-       var min$a = Math.min;
+       var min$8 = Math.min;
        var contourId = 0;
 
        function processPolygon(contourOrHole, isSubject, depth, Q, bbox, isExteriorRing) {
 
            var x = s1[0],
                y = s1[1];
-           bbox[0] = min$a(bbox[0], x);
-           bbox[1] = min$a(bbox[1], y);
+           bbox[0] = min$8(bbox[0], x);
+           bbox[1] = min$8(bbox[1], y);
            bbox[2] = max$5(bbox[2], x);
            bbox[3] = max$5(bbox[3], y); // Pushing it so the queue is sorted from left to right,
            // with object on the left having the highest priority.
                var isClipped = false; // Clip to tile bounds
 
                if (geometry.type === 'MultiPolygon') {
-                 var featureClip = turf_bboxClip(feature, tile.extent.rectangle());
+                 var featureClip = bboxClip(feature, tile.extent.rectangle());
 
                  if (!fastDeepEqual(feature.geometry, featureClip.geometry)) {
                    // feature = featureClip;
        var INCORRECT_LENGTH = !!nativeFromCodePoint && nativeFromCodePoint.length != 1;
 
        // `String.fromCodePoint` method
-       // https://tc39.github.io/ecma262/#sec-string.fromcodepoint
+       // https://tc39.es/ecma262/#sec-string.fromcodepoint
        _export({ target: 'String', stat: true, forced: INCORRECT_LENGTH }, {
-         fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars
+         // eslint-disable-next-line no-unused-vars -- required for `.length`
+         fromCodePoint: function fromCodePoint(x) {
            var elements = [];
            var length = arguments.length;
            var i = 0;
        });
 
        var rbush_1 = rbush;
-       var _default$2 = rbush;
+       var _default$1 = rbush;
 
        function rbush(maxEntries, format) {
          if (!(this instanceof rbush)) return new rbush(maxEntries, format); // max entries in a node is 9 by default; min node fill is 40% for best performance
            stack.push(left, mid, mid, right);
          }
        }
-       rbush_1["default"] = _default$2;
+       rbush_1["default"] = _default$1;
 
-       var lineclip_1$1 = lineclip$1;
+       var lineclip_1 = lineclip$1;
        lineclip$1.polyline = lineclip$1;
        lineclip$1.polygon = polygonclip$1; // Cohen-Sutherland line clippign algorithm, adapted to efficiently
        // handle polylines rather than just segments
          if (insidePolygon(polygon, bboxCenter)) return true;
 
          for (var i = 0; i < polygon.length; i++) {
-           if (lineclip_1$1(polygon[i], bbox).length > 0) return true;
+           if (lineclip_1(polygon[i], bbox).length > 0) return true;
          }
 
          return false;
          return featureForID(query);
        }
 
-       function feature(query, opts) {
+       function feature$1(query, opts) {
          if (_typeof(query) === 'object') {
            return featureForLoc(query, opts);
          }
          return featureForID(query);
        }
        function iso1A2Code(query, opts) {
-         var match = feature(query, opts);
+         var match = feature$1(query, opts);
          if (!match) return null;
          return match.properties.iso1A2 || null;
        }
        });
 
        // `Math.sinh` method
-       // https://tc39.github.io/ecma262/#sec-math.sinh
+       // https://tc39.es/ecma262/#sec-math.sinh
        // V8 near Chromium 38 has a problem with very small numbers
        _export({ target: 'Math', stat: true, forced: FORCED$g }, {
          sinh: function sinh(x) {
          return featureList;
        }
 
+       var getOwnPropertyDescriptor$4 = objectGetOwnPropertyDescriptor.f;
+
+
+
+
+
+
+       var nativeStartsWith = ''.startsWith;
+       var min$9 = Math.min;
+
+       var CORRECT_IS_REGEXP_LOGIC = correctIsRegexpLogic('startsWith');
+       // https://github.com/zloirock/core-js/pull/702
+       var MDN_POLYFILL_BUG =  !CORRECT_IS_REGEXP_LOGIC && !!function () {
+         var descriptor = getOwnPropertyDescriptor$4(String.prototype, 'startsWith');
+         return descriptor && !descriptor.writable;
+       }();
+
+       // `String.prototype.startsWith` method
+       // https://tc39.es/ecma262/#sec-string.prototype.startswith
+       _export({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
+         startsWith: function startsWith(searchString /* , position = 0 */) {
+           var that = String(requireObjectCoercible(this));
+           notARegexp(searchString);
+           var index = toLength(min$9(arguments.length > 1 ? arguments[1] : undefined, that.length));
+           var search = String(searchString);
+           return nativeStartsWith
+             ? nativeStartsWith.call(that, search, index)
+             : that.slice(index, index + search.length) === search;
+         }
+       });
+
        function uiSectionEntityIssues(context) {
          var _entityIDs = [];
          var _issues = [];
          return utilRebind(textarea, dispatch$1, 'on');
        }
 
+       var getOwnPropertyDescriptor$5 = objectGetOwnPropertyDescriptor.f;
+
+
+
+
+
+
+       var nativeEndsWith = ''.endsWith;
+       var min$a = Math.min;
+
+       var CORRECT_IS_REGEXP_LOGIC$1 = correctIsRegexpLogic('endsWith');
+       // https://github.com/zloirock/core-js/pull/702
+       var MDN_POLYFILL_BUG$1 =  !CORRECT_IS_REGEXP_LOGIC$1 && !!function () {
+         var descriptor = getOwnPropertyDescriptor$5(String.prototype, 'endsWith');
+         return descriptor && !descriptor.writable;
+       }();
+
+       // `String.prototype.endsWith` method
+       // https://tc39.es/ecma262/#sec-string.prototype.endswith
+       _export({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG$1 && !CORRECT_IS_REGEXP_LOGIC$1 }, {
+         endsWith: function endsWith(searchString /* , endPosition = @length */) {
+           var that = String(requireObjectCoercible(this));
+           notARegexp(searchString);
+           var endPosition = arguments.length > 1 ? arguments[1] : undefined;
+           var len = toLength(that.length);
+           var end = endPosition === undefined ? len : min$a(toLength(endPosition), len);
+           var search = String(searchString);
+           return nativeEndsWith
+             ? nativeEndsWith.call(that, search, end)
+             : that.slice(end - search.length, end) === search;
+         }
+       });
+
        function uiFieldWikidata(field, context) {
          var wikidata = services.wikidata;
          var dispatch$1 = dispatch('change');
        var globalIsFinite = global_1.isFinite;
 
        // `Number.isFinite` method
-       // https://tc39.github.io/ecma262/#sec-number.isfinite
+       // https://tc39.es/ecma262/#sec-number.isfinite
        var numberIsFinite = Number.isFinite || function isFinite(it) {
          return typeof it == 'number' && globalIsFinite(it);
        };
 
        // `Number.isFinite` method
-       // https://tc39.github.io/ecma262/#sec-number.isfinite
+       // https://tc39.es/ecma262/#sec-number.isfinite
        _export({ target: 'Number', stat: true }, { isFinite: numberIsFinite });
 
        var RADIUS = 6378137;
          ring: ring
        };
 
-       function toRadians(angleInDegrees) {
-         return angleInDegrees * Math.PI / 180;
-       }
-
-       function toDegrees(angleInRadians) {
-         return angleInRadians * 180 / Math.PI;
-       }
-
-       function offset(c1, distance, bearing) {
-         var lat1 = toRadians(c1[1]);
-         var lon1 = toRadians(c1[0]);
-         var dByR = distance / 6378137; // distance divided by 6378137 (radius of the earth) wgs84
-
-         var lat = Math.asin(Math.sin(lat1) * Math.cos(dByR) + Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing));
-         var lon = lon1 + Math.atan2(Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1), Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat));
-         return [toDegrees(lon), toDegrees(lat)];
-       }
-
-       function validateCenter(center) {
+       var validateCenter_1 = function validateCenter(center) {
          var validCenterLengths = [2, 3];
 
          if (!Array.isArray(center) || !validCenterLengths.includes(center.length)) {
          if (lat > 90 || lat < -90) {
            throw new Error("ERROR! Latitude has to be between -90 and 90 but was ".concat(lat));
          }
-       }
+       };
+
+       var validateCenter = {
+         validateCenter: validateCenter_1
+       };
 
-       function validateRadius(radius) {
+       var validateRadius_1 = function validateRadius(radius) {
          if (typeof radius !== "number") {
            throw new Error("ERROR! Radius has to be a positive number but was: ".concat(_typeof(radius)));
          }
          if (radius <= 0) {
            throw new Error("ERROR! Radius has to be a positive number but was: ".concat(radius));
          }
-       }
+       };
+
+       var validateRadius = {
+         validateRadius: validateRadius_1
+       };
 
-       function validateNumberOfSegments(numberOfSegments) {
-         if (typeof numberOfSegments !== "number" && numberOfSegments !== undefined) {
-           throw new Error("ERROR! Number of segments has to be a number but was: ".concat(_typeof(numberOfSegments)));
+       var validateNumberOfEdges_1 = function validateNumberOfEdges(numberOfEdges) {
+         if (typeof numberOfEdges !== "number") {
+           var ARGUMENT_TYPE = Array.isArray(numberOfEdges) ? "array" : _typeof(numberOfEdges);
+           throw new Error("ERROR! Number of edges has to be a number but was: ".concat(ARGUMENT_TYPE));
          }
 
-         if (numberOfSegments < 3) {
-           throw new Error("ERROR! Number of segments has to be at least 3 but was: ".concat(numberOfSegments));
+         if (numberOfEdges < 3) {
+           throw new Error("ERROR! Number of edges has to be at least 3 but was: ".concat(numberOfEdges));
          }
-       }
+       };
+
+       var validateNumberOfEdges = {
+         validateNumberOfEdges: validateNumberOfEdges_1
+       };
+
+       var validateEarthRadius_1 = function validateEarthRadius(earthRadius) {
+         if (typeof earthRadius !== "number") {
+           var ARGUMENT_TYPE = Array.isArray(earthRadius) ? "array" : _typeof(earthRadius);
+           throw new Error("ERROR! Earth radius has to be a number but was: ".concat(ARGUMENT_TYPE));
+         }
+
+         if (earthRadius <= 0) {
+           throw new Error("ERROR! Earth radius has to be a positive number but was: ".concat(earthRadius));
+         }
+       };
+
+       var validateEarthRadius = {
+         validateEarthRadius: validateEarthRadius_1
+       };
+
+       var validateBearing_1 = function validateBearing(bearing) {
+         if (typeof bearing !== "number") {
+           var ARGUMENT_TYPE = Array.isArray(bearing) ? "array" : _typeof(bearing);
+           throw new Error("ERROR! Bearing has to be a number but was: ".concat(ARGUMENT_TYPE));
+         }
+       };
+
+       var validateBearing = {
+         validateBearing: validateBearing_1
+       };
+
+       var validateCenter$1 = validateCenter.validateCenter;
+       var validateRadius$1 = validateRadius.validateRadius;
+       var validateNumberOfEdges$1 = validateNumberOfEdges.validateNumberOfEdges;
+       var validateEarthRadius$1 = validateEarthRadius.validateEarthRadius;
+       var validateBearing$1 = validateBearing.validateBearing;
 
        function validateInput(_ref) {
          var center = _ref.center,
              radius = _ref.radius,
-             numberOfSegments = _ref.numberOfSegments;
-         validateCenter(center);
-         validateRadius(radius);
-         validateNumberOfSegments(numberOfSegments);
+             numberOfEdges = _ref.numberOfEdges,
+             earthRadius = _ref.earthRadius,
+             bearing = _ref.bearing;
+         validateCenter$1(center);
+         validateRadius$1(radius);
+         validateNumberOfEdges$1(numberOfEdges);
+         validateEarthRadius$1(earthRadius);
+         validateBearing$1(bearing);
+       }
+
+       var validateCenter_1$1 = validateCenter$1;
+       var validateRadius_1$1 = validateRadius$1;
+       var validateNumberOfEdges_1$1 = validateNumberOfEdges$1;
+       var validateEarthRadius_1$1 = validateEarthRadius$1;
+       var validateBearing_1$1 = validateBearing$1;
+       var validateInput_1 = validateInput;
+       var inputValidation = {
+         validateCenter: validateCenter_1$1,
+         validateRadius: validateRadius_1$1,
+         validateNumberOfEdges: validateNumberOfEdges_1$1,
+         validateEarthRadius: validateEarthRadius_1$1,
+         validateBearing: validateBearing_1$1,
+         validateInput: validateInput_1
+       };
+
+       var validateInput$1 = inputValidation.validateInput;
+       var defaultEarthRadius = 6378137; // equatorial Earth radius
+
+       function toRadians(angleInDegrees) {
+         return angleInDegrees * Math.PI / 180;
+       }
+
+       function toDegrees(angleInRadians) {
+         return angleInRadians * 180 / Math.PI;
+       }
+
+       function offset(c1, distance, earthRadius, bearing) {
+         var lat1 = toRadians(c1[1]);
+         var lon1 = toRadians(c1[0]);
+         var dByR = distance / earthRadius;
+         var lat = Math.asin(Math.sin(lat1) * Math.cos(dByR) + Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing));
+         var lon = lon1 + Math.atan2(Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1), Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat));
+         return [toDegrees(lon), toDegrees(lat)];
        }
 
-       var circleToPolygon = function circleToPolygon(center, radius, numberOfSegments) {
-         var n = numberOfSegments ? numberOfSegments : 32; // validateInput() throws error on invalid input and do nothing on valid input
+       var circleToPolygon = function circleToPolygon(center, radius, options) {
+         var n = getNumberOfEdges(options);
+         var earthRadius = getEarthRadius(options);
+         var bearing = getBearing(options); // validateInput() throws error on invalid input and do nothing on valid input
 
-         validateInput({
+         validateInput$1({
            center: center,
            radius: radius,
-           numberOfSegments: numberOfSegments
+           numberOfEdges: n,
+           earthRadius: earthRadius,
+           bearing: bearing
          });
+         var start = toRadians(bearing);
          var coordinates = [];
 
          for (var i = 0; i < n; ++i) {
-           coordinates.push(offset(center, radius, 2 * Math.PI * -i / n));
+           coordinates.push(offset(center, radius, earthRadius, start + 2 * Math.PI * -i / n));
          }
 
          coordinates.push(coordinates[0]);
          };
        };
 
+       function getNumberOfEdges(options) {
+         if (options === undefined) {
+           return 32;
+         } else if (isObjectNotArray(options)) {
+           var numberOfEdges = options.numberOfEdges;
+           return numberOfEdges === undefined ? 32 : numberOfEdges;
+         }
+
+         return options;
+       }
+
+       function getEarthRadius(options) {
+         if (options === undefined) {
+           return defaultEarthRadius;
+         } else if (isObjectNotArray(options)) {
+           var earthRadius = options.earthRadius;
+           return earthRadius === undefined ? defaultEarthRadius : earthRadius;
+         }
+
+         return defaultEarthRadius;
+       }
+
+       function getBearing(options) {
+         if (options === undefined) {
+           return 0;
+         } else if (isObjectNotArray(options)) {
+           var bearing = options.bearing;
+           return bearing === undefined ? 0 : bearing;
+         }
+
+         return 0;
+       }
+
+       function isObjectNotArray(argument) {
+         return _typeof(argument) === "object" && !Array.isArray(argument);
+       }
+
        // `Number.EPSILON` constant
-       // https://tc39.github.io/ecma262/#sec-number.epsilon
+       // https://tc39.es/ecma262/#sec-number.epsilon
        _export({ target: 'Number', stat: true }, {
          EPSILON: Math.pow(2, -52)
        });
 
        /**
-        * splaytree v3.0.1
+        * splaytree v3.1.0
         * Fast Splay tree for Node and browser
         *
         * @author Alexander Milevski <info@w8r.name>
         * @license MIT
         * @preserve
         */
-       var Node$1 = function Node(key, data) {
-         _classCallCheck(this, Node);
-
-         this.next = null;
-         this.key = key;
-         this.data = data;
-         this.left = null;
-         this.right = null;
-       };
+       var Node$1 =
+       /** @class */
+       function () {
+         function Node(key, data) {
+           this.next = null;
+           this.key = key;
+           this.data = data;
+           this.left = null;
+           this.right = null;
+         }
+
+         return Node;
+       }();
        /* follows "An implementation of top-down splaying"
         * by D. Sleator <sleator@cs.cmu.edu> March 1992
         */
              if (t.right === null) break; //if (i > t.right.key) {
 
              if (comparator(i, t.right.key) > 0) {
-               var _y = t.right;
+               var y = t.right;
                /* rotate left */
 
-               t.right = _y.left;
-               _y.left = t;
-               t = _y;
+               t.right = y.left;
+               y.left = t;
+               t = y;
                if (t.right === null) break;
              }
 
          return t;
        }
 
-       function _insert(i, data, t, comparator) {
+       function insert(i, data, t, comparator) {
          var node = new Node$1(i, data);
 
          if (t === null) {
          return node;
        }
 
-       function _split(key, v, comparator) {
+       function split$2(key, v, comparator) {
          var left = null;
          var right = null;
 
 
        function printRow(root, prefix, isTail, out, printNode) {
          if (root) {
-           out("".concat(prefix).concat(isTail ? '└── ' : '├── ').concat(printNode(root), "\n"));
+           out("" + prefix + (isTail ? '└── ' : '├── ') + printNode(root) + "\n");
            var indent = prefix + (isTail ? '    ' : '│   ');
            if (root.left) printRow(root.left, indent, false, out, printNode);
            if (root.right) printRow(root.right, indent, true, out, printNode);
          }
        }
 
-       var Tree = /*#__PURE__*/function () {
-         function Tree() {
-           var comparator = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : DEFAULT_COMPARE$1;
-
-           _classCallCheck(this, Tree);
+       var Tree =
+       /** @class */
+       function () {
+         function Tree(comparator) {
+           if (comparator === void 0) {
+             comparator = DEFAULT_COMPARE$1;
+           }
 
            this._root = null;
            this._size = 0;
           */
 
 
-         _createClass(Tree, [{
-           key: "insert",
-           value: function insert(key, data) {
-             this._size++;
-             return this._root = _insert(key, data, this._root, this._comparator);
-           }
-           /**
-            * Adds a key, if it is not present in the tree
-            */
+         Tree.prototype.insert = function (key, data) {
+           this._size++;
+           return this._root = insert(key, data, this._root, this._comparator);
+         };
+         /**
+          * Adds a key, if it is not present in the tree
+          */
 
-         }, {
-           key: "add",
-           value: function add(key, data) {
-             var node = new Node$1(key, data);
 
-             if (this._root === null) {
-               node.left = node.right = null;
-               this._size++;
-               this._root = node;
-             }
+         Tree.prototype.add = function (key, data) {
+           var node = new Node$1(key, data);
 
-             var comparator = this._comparator;
-             var t = splay(key, this._root, comparator);
-             var cmp = comparator(key, t.key);
-             if (cmp === 0) this._root = t;else {
-               if (cmp < 0) {
-                 node.left = t.left;
-                 node.right = t;
-                 t.left = null;
-               } else if (cmp > 0) {
-                 node.right = t.right;
-                 node.left = t;
-                 t.right = null;
-               }
+           if (this._root === null) {
+             node.left = node.right = null;
+             this._size++;
+             this._root = node;
+           }
 
-               this._size++;
-               this._root = node;
+           var comparator = this._comparator;
+           var t = splay(key, this._root, comparator);
+           var cmp = comparator(key, t.key);
+           if (cmp === 0) this._root = t;else {
+             if (cmp < 0) {
+               node.left = t.left;
+               node.right = t;
+               t.left = null;
+             } else if (cmp > 0) {
+               node.right = t.right;
+               node.left = t;
+               t.right = null;
              }
-             return this._root;
-           }
-           /**
-            * @param  {Key} key
-            * @return {Node|null}
-            */
 
-         }, {
-           key: "remove",
-           value: function remove(key) {
-             this._root = this._remove(key, this._root, this._comparator);
+             this._size++;
+             this._root = node;
            }
-           /**
-            * Deletes i from the tree if it's there
-            */
+           return this._root;
+         };
+         /**
+          * @param  {Key} key
+          * @return {Node|null}
+          */
 
-         }, {
-           key: "_remove",
-           value: function _remove(i, t, comparator) {
-             var x;
-             if (t === null) return null;
-             t = splay(i, t, comparator);
-             var cmp = comparator(i, t.key);
-
-             if (cmp === 0) {
-               /* found it */
-               if (t.left === null) {
-                 x = t.right;
-               } else {
-                 x = splay(i, t.left, comparator);
-                 x.right = t.right;
-               }
 
-               this._size--;
-               return x;
+         Tree.prototype.remove = function (key) {
+           this._root = this._remove(key, this._root, this._comparator);
+         };
+         /**
+          * Deletes i from the tree if it's there
+          */
+
+
+         Tree.prototype._remove = function (i, t, comparator) {
+           var x;
+           if (t === null) return null;
+           t = splay(i, t, comparator);
+           var cmp = comparator(i, t.key);
+
+           if (cmp === 0) {
+             /* found it */
+             if (t.left === null) {
+               x = t.right;
+             } else {
+               x = splay(i, t.left, comparator);
+               x.right = t.right;
              }
 
-             return t;
-             /* It wasn't there */
+             this._size--;
+             return x;
            }
-           /**
-            * Removes and returns the node with smallest key
-            */
 
-         }, {
-           key: "pop",
-           value: function pop() {
-             var node = this._root;
+           return t;
+           /* It wasn't there */
+         };
+         /**
+          * Removes and returns the node with smallest key
+          */
 
-             if (node) {
-               while (node.left) {
-                 node = node.left;
-               }
 
-               this._root = splay(node.key, this._root, this._comparator);
-               this._root = this._remove(node.key, this._root, this._comparator);
-               return {
-                 key: node.key,
-                 data: node.data
-               };
+         Tree.prototype.pop = function () {
+           var node = this._root;
+
+           if (node) {
+             while (node.left) {
+               node = node.left;
              }
 
-             return null;
+             this._root = splay(node.key, this._root, this._comparator);
+             this._root = this._remove(node.key, this._root, this._comparator);
+             return {
+               key: node.key,
+               data: node.data
+             };
            }
-           /**
-            * Find without splaying
-            */
 
-         }, {
-           key: "findStatic",
-           value: function findStatic(key) {
-             var current = this._root;
-             var compare = this._comparator;
+           return null;
+         };
+         /**
+          * Find without splaying
+          */
 
-             while (current) {
-               var cmp = compare(key, current.key);
-               if (cmp === 0) return current;else if (cmp < 0) current = current.left;else current = current.right;
-             }
 
-             return null;
+         Tree.prototype.findStatic = function (key) {
+           var current = this._root;
+           var compare = this._comparator;
+
+           while (current) {
+             var cmp = compare(key, current.key);
+             if (cmp === 0) return current;else if (cmp < 0) current = current.left;else current = current.right;
            }
-         }, {
-           key: "find",
-           value: function find(key) {
-             if (this._root) {
-               this._root = splay(key, this._root, this._comparator);
-               if (this._comparator(key, this._root.key) !== 0) return null;
-             }
 
-             return this._root;
+           return null;
+         };
+
+         Tree.prototype.find = function (key) {
+           if (this._root) {
+             this._root = splay(key, this._root, this._comparator);
+             if (this._comparator(key, this._root.key) !== 0) return null;
            }
-         }, {
-           key: "contains",
-           value: function contains(key) {
-             var current = this._root;
-             var compare = this._comparator;
 
-             while (current) {
-               var cmp = compare(key, current.key);
-               if (cmp === 0) return true;else if (cmp < 0) current = current.left;else current = current.right;
-             }
+           return this._root;
+         };
 
-             return false;
+         Tree.prototype.contains = function (key) {
+           var current = this._root;
+           var compare = this._comparator;
+
+           while (current) {
+             var cmp = compare(key, current.key);
+             if (cmp === 0) return true;else if (cmp < 0) current = current.left;else current = current.right;
            }
-         }, {
-           key: "forEach",
-           value: function forEach(visitor, ctx) {
-             var current = this._root;
-             var Q = [];
-             /* Initialize stack s */
 
-             var done = false;
+           return false;
+         };
 
-             while (!done) {
-               if (current !== null) {
-                 Q.push(current);
-                 current = current.left;
-               } else {
-                 if (Q.length !== 0) {
-                   current = Q.pop();
-                   visitor.call(ctx, current);
-                   current = current.right;
-                 } else done = true;
-               }
-             }
+         Tree.prototype.forEach = function (visitor, ctx) {
+           var current = this._root;
+           var Q = [];
+           /* Initialize stack s */
 
-             return this;
+           var done = false;
+
+           while (!done) {
+             if (current !== null) {
+               Q.push(current);
+               current = current.left;
+             } else {
+               if (Q.length !== 0) {
+                 current = Q.pop();
+                 visitor.call(ctx, current);
+                 current = current.right;
+               } else done = true;
+             }
            }
-           /**
-            * Walk key range from `low` to `high`. Stops if `fn` returns a value.
-            */
 
-         }, {
-           key: "range",
-           value: function range(low, high, fn, ctx) {
-             var Q = [];
-             var compare = this._comparator;
-             var node = this._root;
-             var cmp;
+           return this;
+         };
+         /**
+          * Walk key range from `low` to `high`. Stops if `fn` returns a value.
+          */
 
-             while (Q.length !== 0 || node) {
-               if (node) {
-                 Q.push(node);
-                 node = node.left;
-               } else {
-                 node = Q.pop();
-                 cmp = compare(node.key, high);
 
-                 if (cmp > 0) {
-                   break;
-                 } else if (compare(node.key, low) >= 0) {
-                   if (fn.call(ctx, node)) return this; // stop if smth is returned
-                 }
+         Tree.prototype.range = function (low, high, fn, ctx) {
+           var Q = [];
+           var compare = this._comparator;
+           var node = this._root;
+           var cmp;
 
-                 node = node.right;
+           while (Q.length !== 0 || node) {
+             if (node) {
+               Q.push(node);
+               node = node.left;
+             } else {
+               node = Q.pop();
+               cmp = compare(node.key, high);
+
+               if (cmp > 0) {
+                 break;
+               } else if (compare(node.key, low) >= 0) {
+                 if (fn.call(ctx, node)) return this; // stop if smth is returned
                }
-             }
 
-             return this;
+               node = node.right;
+             }
            }
-           /**
-            * Returns array of keys
-            */
 
-         }, {
-           key: "keys",
-           value: function keys() {
-             var keys = [];
-             this.forEach(function (_ref) {
-               var key = _ref.key;
-               return keys.push(key);
-             });
-             return keys;
-           }
-           /**
-            * Returns array of all the data in the nodes
-            */
+           return this;
+         };
+         /**
+          * Returns array of keys
+          */
 
-         }, {
-           key: "values",
-           value: function values() {
-             var values = [];
-             this.forEach(function (_ref2) {
-               var data = _ref2.data;
-               return values.push(data);
-             });
-             return values;
-           }
-         }, {
-           key: "min",
-           value: function min() {
-             if (this._root) return this.minNode(this._root).key;
-             return null;
+
+         Tree.prototype.keys = function () {
+           var keys = [];
+           this.forEach(function (_a) {
+             var key = _a.key;
+             return keys.push(key);
+           });
+           return keys;
+         };
+         /**
+          * Returns array of all the data in the nodes
+          */
+
+
+         Tree.prototype.values = function () {
+           var values = [];
+           this.forEach(function (_a) {
+             var data = _a.data;
+             return values.push(data);
+           });
+           return values;
+         };
+
+         Tree.prototype.min = function () {
+           if (this._root) return this.minNode(this._root).key;
+           return null;
+         };
+
+         Tree.prototype.max = function () {
+           if (this._root) return this.maxNode(this._root).key;
+           return null;
+         };
+
+         Tree.prototype.minNode = function (t) {
+           if (t === void 0) {
+             t = this._root;
            }
-         }, {
-           key: "max",
-           value: function max() {
-             if (this._root) return this.maxNode(this._root).key;
-             return null;
+
+           if (t) while (t.left) {
+             t = t.left;
            }
-         }, {
-           key: "minNode",
-           value: function minNode() {
-             var t = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this._root;
-             if (t) while (t.left) {
-               t = t.left;
-             }
-             return t;
+           return t;
+         };
+
+         Tree.prototype.maxNode = function (t) {
+           if (t === void 0) {
+             t = this._root;
            }
-         }, {
-           key: "maxNode",
-           value: function maxNode() {
-             var t = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this._root;
-             if (t) while (t.right) {
-               t = t.right;
-             }
-             return t;
+
+           if (t) while (t.right) {
+             t = t.right;
            }
-           /**
-            * Returns node at given index
-            */
+           return t;
+         };
+         /**
+          * Returns node at given index
+          */
 
-         }, {
-           key: "at",
-           value: function at(index) {
-             var current = this._root;
-             var done = false;
-             var i = 0;
-             var Q = [];
 
-             while (!done) {
-               if (current) {
-                 Q.push(current);
-                 current = current.left;
-               } else {
-                 if (Q.length > 0) {
-                   current = Q.pop();
-                   if (i === index) return current;
-                   i++;
-                   current = current.right;
-                 } else done = true;
-               }
-             }
+         Tree.prototype.at = function (index) {
+           var current = this._root;
+           var done = false;
+           var i = 0;
+           var Q = [];
 
-             return null;
+           while (!done) {
+             if (current) {
+               Q.push(current);
+               current = current.left;
+             } else {
+               if (Q.length > 0) {
+                 current = Q.pop();
+                 if (i === index) return current;
+                 i++;
+                 current = current.right;
+               } else done = true;
+             }
            }
-         }, {
-           key: "next",
-           value: function next(d) {
-             var root = this._root;
-             var successor = null;
 
-             if (d.right) {
-               successor = d.right;
-
-               while (successor.left) {
-                 successor = successor.left;
-               }
+           return null;
+         };
 
-               return successor;
-             }
+         Tree.prototype.next = function (d) {
+           var root = this._root;
+           var successor = null;
 
-             var comparator = this._comparator;
+           if (d.right) {
+             successor = d.right;
 
-             while (root) {
-               var cmp = comparator(d.key, root.key);
-               if (cmp === 0) break;else if (cmp < 0) {
-                 successor = root;
-                 root = root.left;
-               } else root = root.right;
+             while (successor.left) {
+               successor = successor.left;
              }
 
              return successor;
            }
-         }, {
-           key: "prev",
-           value: function prev(d) {
-             var root = this._root;
-             var predecessor = null;
 
-             if (d.left !== null) {
-               predecessor = d.left;
+           var comparator = this._comparator;
 
-               while (predecessor.right) {
-                 predecessor = predecessor.right;
-               }
+           while (root) {
+             var cmp = comparator(d.key, root.key);
+             if (cmp === 0) break;else if (cmp < 0) {
+               successor = root;
+               root = root.left;
+             } else root = root.right;
+           }
 
-               return predecessor;
-             }
+           return successor;
+         };
 
-             var comparator = this._comparator;
+         Tree.prototype.prev = function (d) {
+           var root = this._root;
+           var predecessor = null;
 
-             while (root) {
-               var cmp = comparator(d.key, root.key);
-               if (cmp === 0) break;else if (cmp < 0) root = root.left;else {
-                 predecessor = root;
-                 root = root.right;
-               }
+           if (d.left !== null) {
+             predecessor = d.left;
+
+             while (predecessor.right) {
+               predecessor = predecessor.right;
              }
 
              return predecessor;
            }
-         }, {
-           key: "clear",
-           value: function clear() {
-             this._root = null;
-             this._size = 0;
-             return this;
-           }
-         }, {
-           key: "toList",
-           value: function toList() {
-             return _toList(this._root);
+
+           var comparator = this._comparator;
+
+           while (root) {
+             var cmp = comparator(d.key, root.key);
+             if (cmp === 0) break;else if (cmp < 0) root = root.left;else {
+               predecessor = root;
+               root = root.right;
+             }
            }
-           /**
-            * Bulk-load items. Both array have to be same size
-            */
 
-         }, {
-           key: "load",
-           value: function load(keys) {
-             var values = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
-             var presort = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
-             var size = keys.length;
-             var comparator = this._comparator; // sort if needed
+           return predecessor;
+         };
 
-             if (presort) sort$1(keys, values, 0, size - 1, comparator);
+         Tree.prototype.clear = function () {
+           this._root = null;
+           this._size = 0;
+           return this;
+         };
 
-             if (this._root === null) {
-               // empty tree
-               this._root = loadRecursive$1(keys, values, 0, size);
-               this._size = size;
-             } else {
-               // that re-builds the whole tree from two in-order traversals
-               var mergedList = mergeLists(this.toList(), createList(keys, values), comparator);
-               size = this._size + size;
-               this._root = sortedListToBST({
-                 head: mergedList
-               }, 0, size);
-             }
+         Tree.prototype.toList = function () {
+           return toList(this._root);
+         };
+         /**
+          * Bulk-load items. Both array have to be same size
+          */
 
-             return this;
-           }
-         }, {
-           key: "isEmpty",
-           value: function isEmpty() {
-             return this._root === null;
+
+         Tree.prototype.load = function (keys, values, presort) {
+           if (values === void 0) {
+             values = [];
            }
-         }, {
-           key: "toString",
-           value: function toString() {
-             var printNode = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function (n) {
-               return String(n.key);
-             };
-             var out = [];
-             printRow(this._root, '', true, function (v) {
-               return out.push(v);
-             }, printNode);
-             return out.join('');
+
+           if (presort === void 0) {
+             presort = false;
            }
-         }, {
-           key: "update",
-           value: function update(key, newKey, newData) {
-             var comparator = this._comparator;
 
-             var _split2 = _split(key, this._root, comparator),
-                 left = _split2.left,
-                 right = _split2.right;
+           var size = keys.length;
+           var comparator = this._comparator; // sort if needed
 
-             if (comparator(key, newKey) < 0) {
-               right = _insert(newKey, newData, right, comparator);
-             } else {
-               left = _insert(newKey, newData, left, comparator);
-             }
+           if (presort) sort$1(keys, values, 0, size - 1, comparator);
 
-             this._root = merge$4(left, right, comparator);
-           }
-         }, {
-           key: "split",
-           value: function split(key) {
-             return _split(key, this._root, this._comparator);
+           if (this._root === null) {
+             // empty tree
+             this._root = loadRecursive$1(keys, values, 0, size);
+             this._size = size;
+           } else {
+             // that re-builds the whole tree from two in-order traversals
+             var mergedList = mergeLists(this.toList(), createList(keys, values), comparator);
+             size = this._size + size;
+             this._root = sortedListToBST({
+               head: mergedList
+             }, 0, size);
            }
-         }, {
-           key: "size",
+
+           return this;
+         };
+
+         Tree.prototype.isEmpty = function () {
+           return this._root === null;
+         };
+
+         Object.defineProperty(Tree.prototype, "size", {
            get: function get() {
              return this._size;
-           }
-         }, {
-           key: "root",
+           },
+           enumerable: true,
+           configurable: true
+         });
+         Object.defineProperty(Tree.prototype, "root", {
            get: function get() {
              return this._root;
+           },
+           enumerable: true,
+           configurable: true
+         });
+
+         Tree.prototype.toString = function (printNode) {
+           if (printNode === void 0) {
+             printNode = function printNode(n) {
+               return String(n.key);
+             };
            }
-         }]);
+
+           var out = [];
+           printRow(this._root, '', true, function (v) {
+             return out.push(v);
+           }, printNode);
+           return out.join('');
+         };
+
+         Tree.prototype.update = function (key, newKey, newData) {
+           var comparator = this._comparator;
+
+           var _a = split$2(key, this._root, comparator),
+               left = _a.left,
+               right = _a.right;
+
+           if (comparator(key, newKey) < 0) {
+             right = insert(newKey, newData, right, comparator);
+           } else {
+             left = insert(newKey, newData, left, comparator);
+           }
+
+           this._root = merge$4(left, right, comparator);
+         };
+
+         Tree.prototype.split = function (key) {
+           return split$2(key, this._root, this._comparator);
+         };
 
          return Tree;
        }();
          return head.next;
        }
 
-       function _toList(root) {
+       function toList(root) {
          var current = root;
          var Q = [];
          var done = false;
 
        var jsonStringifyPrettyCompact = stringify;
 
-       var _default$3 = /*#__PURE__*/function () {
+       var _default$2 = /*#__PURE__*/function () {
          // constructor
          //
          // `fc`  Optional FeatureCollection of known features
            } // Replace CountryCoder world geometry to be a polygon covering the world.
 
 
-           var world = _cloneDeep(feature('Q2'));
+           var world = _cloneDeep(feature$1('Q2'));
 
            world.geometry = {
              type: 'Polygon',
                }
              } else if (typeof location === 'string' || typeof location === 'number') {
                // a country-coder value?
-               var feature$1 = feature(location);
+               var feature = feature$1(location);
 
-               if (feature$1) {
+               if (feature) {
                  // Use wikidata QID as the identifier, since that seems to be the one
                  // property that everything in CountryCoder is guaranteed to have.
-                 var _id2 = feature$1.properties.wikidata;
+                 var _id2 = feature.properties.wikidata;
                  return {
                    type: 'countrycoder',
                    location: location,
                var PRECISION = 3;
                var area = Math.PI * RADIUS * RADIUS / 1e6; // m² to km²
 
-               var feature$1 = this._cache[id] = geojsonPrecision({
+               var feature = this._cache[id] = geojsonPrecision({
                  type: 'Feature',
                  id: id,
                  properties: {
                  geometry: circleToPolygon(location, RADIUS, EDGES)
                }, PRECISION);
                return Object.assign(valid, {
-                 feature: feature$1
+                 feature: feature
                }); // a .geojson filename?
              } else if (valid.type === 'geojson') ; else if (valid.type === 'countrycoder') {
-               var _feature = _cloneDeep(feature(id));
+               var _feature = _cloneDeep(feature$1(id));
 
                var props = _feature.properties; // -> This block of code is weird and requires some explanation. <-
                // CountryCoder includes higher level features which are made up of members.
            return Promise.all([data.get('oci_resources'), data.get('oci_features')]).then(function (vals) {
              if (_oci) return _oci;
              var ociResources = vals[0].resources;
-             var loco = new _default$3(vals[1]);
+             var loco = new _default$2(vals[1]);
              var ociFeatures = {};
              Object.values(ociResources).forEach(function (resource) {
                var feature = loco.resolveLocationSet(resource.locationSet).feature;
 
          var _deferred = new Set();
 
-         context.version = '2.19.5';
+         context.version = '2.19.6';
          context.privacyVersion = '20200407'; // iD will alter the hash so cache the parameters intended to setup the session
 
          context.initialHashParams = window.location.hash ? utilStringQs(window.location.hash) : {};