[Webkit-unassigned] [Bug 90189] New: -webkit-transform & position: fixed cause the page to not paint properly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90189

           Summary: -webkit-transform & position: fixed cause the page to
                    not paint properly
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://software.hixie.ch/utilities/js/live-dom-viewer/
                    ?saved=1636
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mitch at thefoley.net
                CC: jamesr at chromium.org


See the example here: http://software.hixie.ch/utilities/js/live-dom-viewer/?saved=1636

The box now moves a few pixels down and to the right after every interval. Inspecting #a while the box is moved down and to the right causes it to jump up. Inspecting #b while the box is at the top of the page and in the top left causes it to jump back. (Sounds weird, but just click around on #a and #b in the inspector and you'll see what I mean). Compare the behavior to firefox, where it behaves more reasonably.

Inspecting an element should not change how and where it is rendered.

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