jquery/jquery — pull request #556 by dcherman (2011-10-20 05:23:22+00:00)
Title: Changing a cloned node's backgroundImage causes the original's to change in IE9, Fixes #8908

Add a test in support to check if the browser incorrectly messes with the backgroundImage of the original element when changing the backgroundImage on a cloned element. The obvious problem with this is that this image isn't going to exist, so a 404 will happen which is no bueno.

If we can't find a way around the 404 by changing the test somehow, not sure how else you'd get around this other than to always do the fix below.

If it's broken, setting the backgroundImage to itself on the cloned node seems to fix it.