[Webkit-unassigned] [Bug 81114] New: ASSERT(!needsLayout()) in FrameView::paintContents() with multiple nested iframes, when frame flattening is on

Wed Mar 14 08:41:13 PDT 2012

https://bugs.webkit.org/show_bug.cgi?id=81114

           Summary: ASSERT(!needsLayout()) in FrameView::paintContents()
                    with multiple nested iframes, when frame flattening is
                    on
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://www.iol.ie/~mariah/dbrooks/delon.html
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zbujtas at gmail.com

In case of multiple nested iframes, when the bottom most iframe has a blocking resource and there's a call to paint the tree, before the blocking resource arrives, FrameView::paintContens() asserts with !needsLayout().

this behavior can be seen at www.iol.ie/~mariah/dbrooks/delon.html when clicking on Tag Board link.

simplified test case:
<html><body><iframe src="data:text/html,<html><body><iframe src='http://dl.dropbox.com/u/36138203/cbox.html'></iframe></body></html>"></iframe></body></html>
where cbox.html is a simple page with a blocking resource.
<html><head><script src="notfound.js" type="text/javascript"></script></head><body></body></html>

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