From: Tom Hughes <tom@compton.nu>
Date: Thu, 13 Mar 2014 21:36:10 +0000 (+0000)
Subject: Don't call updateLayers if the new state has no layer config
X-Git-Tag: live~4478
X-Git-Url: https://git.openstreetmap.org/rails.git/commitdiff_plain/24e22dde6e3dd4fde3f92591ac58e1a8b909266a

Don't call updateLayers if the new state has no layer config

Fixes #719
---

diff --git a/app/assets/javascripts/leaflet.map.js.erb b/app/assets/javascripts/leaflet.map.js.erb
index 35370ae99..496e29858 100644
--- a/app/assets/javascripts/leaflet.map.js.erb
+++ b/app/assets/javascripts/leaflet.map.js.erb
@@ -241,7 +241,7 @@ L.OSM.Map = L.Map.extend({
 
   setState: function(state, options) {
     if (state.center) this.setView(state.center, state.zoom, options);
-    this.updateLayers(state.layers);
+    if (state.layers) this.updateLayers(state.layers);
   }
 });