[Webkit-unassigned] [Bug 36783] New: Update of fixed elements is not made correctly when the page has been scrolled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36783

           Summary: Update of fixed elements is not made correctly when
                    the page has been scrolled
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: benjamin.poulain at nokia.com
                CC: benjamin.poulain at nokia.com


Created an attachment (id=51966)
 --> (https://bugs.webkit.org/attachment.cgi?id=51966)
Test case

When moving a fixed element, the area at the previous position is not updated
correctly when the page has been scrolled.

It looks like the update rect of the previous position is computed without
taking into account the scrolling.

Test case attached, it can be reproduced with Safari 4.0.4.

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