[Webkit-unassigned] [Bug 54297] position fixed element does not render properly when dynamically updated via javascript

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=54297





--- Comment #21 from Simon Fraser (smfr) <simon.fraser at apple.com>  2011-04-20 15:33:25 PST ---
(From update of attachment 90423)
View in context: https://bugs.webkit.org/attachment.cgi?id=90423&action=review

> Source/WebCore/rendering/RenderBox.cpp:1436
> +        // LayoutState is only valid for root-relative, non-fixed position repainting
> +        if (v->layoutStateEnabled() && !repaintContainer && style()->position() != FixedPosition) {

This feels like a bandaid. Why does repainting in fixedpos elements normally work, but just not in this one case?

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