No need to use jQuery's event system for binding the onunload event in IE.

diff --git a/src/event.js b/src/event.js
index 018d4d9..283d1e0 100644 (file)
--- a/src/event.js
+++ b/src/event.js
@@ -876,10 +876,9 @@ jQuery.each( ("blur focus load resize scroll unload click dblclick " +
 // More info:
 //  - http://isaacschlueter.com/2006/10/msie-memory-leaks/
 /*@cc_on
-jQuery( window ).bind( 'unload', function() {
+window.attachEvent("onunload", function() {
        for ( var id in jQuery.cache ) {
-               // Skip the window
-               if ( id != 1 && jQuery.cache[ id ].handle ) {
+               if ( jQuery.cache[ id ].handle ) {
                        // Try/Catch is to handle iframes being unloaded, see #4280
                        try {
                                jQuery.event.remove( jQuery.cache[ id ].handle.elem );