[Webkit-unassigned] [Bug 44635] New: Scrolling causes image pattern fill to be rendered incorrectly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=44635

           Summary: Scrolling causes image pattern fill to be rendered
                    incorrectly
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sprite+b.w.o at asia.apple.com
                CC: zimmermann at kde.org


Created an attachment (id=65475)
 --> (https://bugs.webkit.org/attachment.cgi?id=65475)
Testcase for the bug

Scrolling an XHTML page with embedded <svg> would cause pattern fill with the <svg> to be rendered incorrectly.

Steps to reproduce: 

1. Open the attached testcase
2. Open svg-scroll-pattern-corruption/index.xhtml
3. There should be an image on the page
4. Now resize the window to be shorter than the image so vertical scroll bar would appear
5. Reload the page
6. Now the bottom part of the image should be "cropped" by the browser window
7. Scroll down and up repeatedly to see the rendered pattern fill corrupts

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