only invoke didChange if a node is still present.

emberjs · Jun 26, 2015 · 9c52115 · 9c52115
1 parent 0dc1a6c
commit 9c52115
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/packages/ember-metal/lib/chains.js b/packages/ember-metal/lib/chains.js
@@ -354,9 +354,13 @@ ChainNode.prototype = {
 
     // then notify chains...
     var chains = this._chains;
+    var node;
     if (chains) {
       for (var key in chains) {
-        chains[key].didChange(events);
+        node = chains[key];
+        if (node !== undefined) {
+          node.didChange(events);
+        }
       }
     }