Attribute selector (which matches the attribute, 'colspan' for TD and TH elements) matches every TD and TH element

This test case demonstrates the incorrect behaviour of IE8 RTW where an attribute selector (which matches the attribute, 'colspan' for TD and TH elements) matches every TD and TH element.

Live Example

Expected Results

There background to the string, 'THelement TDelement' should be completely lime-green; there should be absolutely no red since neither the TH or TD element has a 'colspan' attribute.