$.data fais in case of retrieving data from a dom element which is no longer in jQuery.cache

[[email protected]…]

The issue is described here ​http://www.datatables.net/forums/discussion/5644/issues-when-removing-datatables-from-the-dom-on-ie8/p1 It rather knotty but in short $.data fails when jquery-ui tries to trigger a "remove" event in it's own overridden $.cleanData function and fails on element which was already removed. This precondition looks like an invalid case, but the fix on jQuery side is pretty straight forward. In line 1455 of full 1.6.2 sorces there is an if condition

if ( (!id || (pvt && id && !cache[ id ][ internalKey ])) && getByName && data === undefined ) {
			return;
		}

there cache[ id ] is undefined so !cache[ id ][ internalKey ] fails with NPE. Is it possible to add additional && cache[ id ] check before !cache[ id ][ internalKey ]?

[addyosmani]

Thanks for submitting a ticket. Could you provide us with a reduced test case replicating the behaviour mentioned on jsFiddle so we can investigate further?

[[email protected]…]

Replying to addyosmani:

Thanks for submitting a ticket. Could you provide us with a reduced test case replicating the behaviour mentioned on jsFiddle so we can investigate further?

Please, here you are ​http://jsfiddle.net/dbdkN/8/ Fails in IE8. After you run the example press "Reinit Table" button. A error will be thrown: Line: 1455 Error: 'undefined' in null or not an object

[Rick Waldron]

Duplicate of #8235.