(This was split out from bug 60285.)
1. Go to data:text/html,<embed style="visibility:hidden" src="http://www.flashexample.com/system/files/sites/flashexample.com/files/upload/clock.swf" type="application/x-shockwave-flash" width=300 height=300>
The plugin is visible, but should be hidden. This occurs in both WebKit1 and WebKit2.
This bug does not occur in Firefox 4.
Duplicate of bug 44368?
*** This bug has been marked as a duplicate of bug 44368 ***