Fix for #1933

src/event.js

@@ -453,5 +453,5 @@ function bindReady(){
 // And prevent errors on refresh with events like mouseover
 // Window isn't included so as not to unbind existing unload events
 jQuery(window).bind("unload", function() {
-	$("*").add(document).unbind();
+	jQuery("*").add(document).unbind();
 });