[Webkit-unassigned] [Bug 229997] New: [css-position-sticky] Sticky constraints are calculated incorrectly when scrolling container has padding and borders

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229997

            Bug ID: 229997
           Summary: [css-position-sticky] Sticky constraints are
                    calculated incorrectly when scrolling container has
                    padding and borders
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mrobinson at webkit.org

imported/w3c/web-platform-tests/css/css-position/sticky/position-sticky-large-top-2.tentative.html and imported/w3c/web-platform-tests/css/css-position/sticky/position-sticky-large-top.tentative.html are failing which test the situation where the scrolling container has padding and border and the "top" property on the sticky item pushes it beyond the original boundaries of the content rect.

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