[Webkit-unassigned] [Bug 245352] New: Background clipping with transform and background-attachment:fixed is incorrect

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245352

            Bug ID: 245352
           Summary: Background clipping with transform and
                    background-attachment:fixed is incorrect
           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: mattwoodrow at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    webkit-bug-importer at group.apple.com, zalan at apple.com

We fail to paint all of the background image for these tests.

Affected WPT:

css/css-transforms/transform-fixed-bg-002.html - https://wpt.fyi/results/css/css-transforms/transform-fixed-bg-002.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2021-transforms
css/css-transforms/transform-fixed-bg-004.html - https://wpt.fyi/results/css/css-transforms/transform-fixed-bg-004.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2021-transforms
css/css-transforms/transform-fixed-bg-005.html - https://wpt.fyi/results/css/css-transforms/transform-fixed-bg-005.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2021-transforms
css/css-transforms/transform-fixed-bg-006.html - https://wpt.fyi/results/css/css-transforms/transform-fixed-bg-006.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2021-transforms
css/css-transforms/transform-fixed-bg-007.html - https://wpt.fyi/results/css/css-transforms/transform-fixed-bg-007.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2021-transforms

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