From dee879ef64fd69b640d97f709b9f108610d5139c Mon Sep 17 00:00:00 2001
From: Davor Racic <davor.racic@gmail.com>
Date: Sat, 19 Dec 2015 12:45:23 +0100
Subject: [PATCH] Patch to fix destroy() being called on an undefined object

https://github.com/heron-mc/heron-mc/issues/399
---
 lib/OpenLayers/Map.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/OpenLayers/Map.js b/lib/OpenLayers/Map.js
index e90a09c6ad..9e62434c44 100644
--- a/lib/OpenLayers/Map.js
+++ b/lib/OpenLayers/Map.js
@@ -816,7 +816,9 @@ OpenLayers.Map = OpenLayers.Class({
 
         if (this.controls != null) {
             for (var i = this.controls.length - 1; i>=0; --i) {
-                this.controls[i].destroy();
+                if(this.controls[i] != undefined) {
+                    this.controls[i].destroy();
+                }
             } 
             this.controls = null;
         }