[Webkit-unassigned] [Bug 221471] CSS transform @keyframes animation breaks full screen video

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221471

Jer Noble <jer.noble at apple.com> changed:

           What    |Removed                     |Added
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         Depends on|                            |84796

--- Comment #7 from Jer Noble <jer.noble at apple.com> ---
The underlying issue is that WebKit does not yet support the 'top layer' behavior specified by https://fullscreen.spec.whatwg.org/#top-layer, so a stray stacking context can override the UA stylesheet which makes the fullscreen element occupy the entire window. In this case, it appears that the 'animate-in' rule is doing so.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=84796
[Bug 84796] Implement the new stacking layer needed by the Fullscreen API and the new <dialog> element
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