Merge pull request #137 from stavarotti/master

Added check for existence of preventDefault()
philogb · Dec 9, 2012 · 6ce70fd · 6ce70fd
2 parents 6185675 + 622834d
commit 6ce70fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Source/Extras/Extras.js b/Source/Extras/Extras.js
@@ -739,7 +739,7 @@ Extras.Classes.Navigation = new Class({
 
   onMouseDown: function(e, win, eventInfo) {
     if(!this.config.panning) return;
-    e.preventDefault();
+    e.preventDefault ? e.preventDefault() : e.returnValue = false;
     $.addClass(this.canvas.getElement(), 'grabbing');
     if(this.config.panning == 'avoid nodes' && (this.dom? this.isLabel(e, win) : eventInfo.getNode())) return;
     this.pressed = true;