[Webkit-unassigned] [Bug 266478] New: Background image if the body element not rendered in some situations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266478

            Bug ID: 266478
           Summary: Background image if the body element not rendered in
                    some situations
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: magomez at igalia.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

The problem can be reproduced with this test page https://people.igalia.com/magomez/bodybackground/bad.html

The body element has a background image (in this case it's just a blue rectangle). The usage of negative z-index values in some of the layers causes that this image is not rendered. The elements rendered in the body layer are rendered (the green rectangle that's shown is rendered into that layer). And if the background-image is replaced with a background-color, the background color is rendered properly.

This reproduces on recent gtk, wpe and mac versions.

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