From: John Resig <jeresig@gmail.com>
Date: Thu, 10 Dec 2009 00:00:59 +0000 (-0800)
Subject: Add a try/catch to handle the exception thrown by unloaded iframes in IE. Fixes ... 
X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=commitdiff_plain;h=b846ad4ca060a100dec3ace5711f96a083bc4ac3

Add a try/catch to handle the exception thrown by unloaded iframes in IE. Fixes #4280.
---

diff --git a/src/event.js b/src/event.js
index afe92af..f766896 100644
--- a/src/event.js
+++ b/src/event.js
@@ -896,7 +896,10 @@ jQuery( window ).bind( 'unload', function() {
 	for ( var id in jQuery.cache ) {
 		// Skip the window
 		if ( id != 1 && jQuery.cache[ id ].handle ) {
-			jQuery.event.remove( jQuery.cache[ id ].handle.elem );
+			// Try/Catch is to handle iframes being unloaded, see #4280
+			try {
+				jQuery.event.remove( jQuery.cache[ id ].handle.elem );
+			} catch(e) {}
 		}
 	}
 });