[Webkit-unassigned] [Bug 105202] New: Fixed position element may be rendered incorrectly during pinch-zooming

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105202

           Summary: Fixed position element may be rendered incorrectly
                    during pinch-zooming
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: wangxianzhu at chromium.org
                CC: simon.fraser at apple.com, jamesr at chromium.org,
                    skyostil at chromium.org


Bug 78186 #8 from Simon Fraser (smfr) 2012-12-16 15:04:31 PST:

There's a problem with this strategy, when combined with zooming;when zoomed in, we may consider a fixed element to be outside the viewport, and not composite it. However, zooming may bring that element back into the viewport, but if it doesn't have a layer yet, it won't be visible while zooming.

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