From 366fb80ddb401fde376515dd12f51e281afe62da Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Mon, 9 Sep 2013 18:30:27 +0100
Subject: [PATCH] Make sure we always have a base layer

---
 app/assets/javascripts/index.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/assets/javascripts/index.js b/app/assets/javascripts/index.js
index a19a6a61e..95771a4b2 100644
--- a/app/assets/javascripts/index.js
+++ b/app/assets/javascripts/index.js
@@ -53,14 +53,20 @@ $(document).ready(function () {
 
   function updateLayers(params) {
     var layerParam = params.layers || "M";
+    var layersAdded = "";
 
     for (var i = layers.length - 1; i >= 0; i--) {
       if (layerParam.indexOf(layers[i].options.code) >= 0) {
         map.addLayer(layers[i]);
+        layersAdded = layersAdded + layers[i].options.code;
       } else {
         map.removeLayer(layers[i]);
       }
     }
+
+    if (layersAdded == "") {
+      map.addLayer(layers[0]);
+    }
   }
 
   updateLayers(params);
-- 
2.43.2