[Webkit-unassigned] [Bug 261654] New: Re-run <meta name=color-scheme> processing when name attribute or content attribute changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261654

            Bug ID: 261654
           Summary: Re-run <meta name=color-scheme> processing when name
                    attribute or content attribute changes
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mike at w3.org
                CC: akeerthi at apple.com

At https://html.spec.whatwg.org/multipage/semantics.html#standard-metadata-names:attr-meta-name-15 the HTML spec requires that:

> [if] existing meta elements have their name or content attributes changed, user agents must re-run the above algorithm

…where “above algorithm” is the algorithm at https://html.spec.whatwg.org/multipage/semantics.html#standard-metadata-names:page's-supported-color-schemes-2

However, WebKit currently doesn’t conform to that requirement, which causes two of the tests at https://wpt.fyi/results/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html to fail in Safari.

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