Found a better detect for deleting an expando, added back in removeAttribute as it does work in IE.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/manipulation.js b/src/manipulation.js
index 4eb19eaf0..196f23072 100644
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -569,7 +569,10 @@ jQuery.extend({
 				}
 				
 				if ( deleteExpando ) {
-					delete elem[ expando ];
+					delete elem[ jQuery.expando ];
+
+				} else if ( elem.removeAttribute ) {
+					elem.removeAttribute( jQuery.expando );
 				}
 				
 				delete cache[ id ];