[Webkit-unassigned] [Bug 47750] New: Redraw problem on elements above a playing video element

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Oct 15 16:10:27 PDT 2010


           Summary: Redraw problem on elements above a playing video
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://gist.github.com/629104
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: andrew at viddler.com

I don't have a suitable way to host a web page right now so I linked to some source HTML(http://gist.github.com/629104)  which you can download and run locally.

This bug requires a few things to be detected:

1) A video element that is currently playing
2) A containing element on top of the video which has overflow:hidden
3) A child of the container element which is absolutely positioned

With all three things in motion, try to increase the width of the child element and it will not be rendered immediately. Change the size of the window and the size of the child element will be updated correctly. If you remove overflow:hidden, the bug will disappear.

This happens in the latest Safari and the latest WebKit.

It's taken me days trying to isolate this issue. I... I need a hug.

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