Full screen from an iframe with a z-index style will allow siblings with higher z-index to overlay full screen content.
Created attachment 191855 [details] Patch
<rdar://problem/13332855>
Comment on attachment 191855 [details] Patch Clearing flags on attachment: 191855 Committed r145001: <http://trac.webkit.org/changeset/145001>
All reviewed patches have been landed. Closing bug.
*** Bug 114376 has been marked as a duplicate of this bug. ***