[Webkit-unassigned] [Bug 281208] New: Ignore subscriptshift/superscriptshift when CoreMathML is enabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=281208

            Bug ID: 281208
           Summary: Ignore subscriptshift/superscriptshift when CoreMathML
                    is enabled
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr
                CC: ahmad.saleem792 at gmail.com, hchen at igalia.com
            Blocks: 281206

We should return a default Length when CoreMathML is enabled here: https://searchfox.org/wubkat/rev/168430191bc069c153b23fdddfc818adea1f2992/Source/WebCore/mathml/MathMLScriptsElement.cpp#70

Test: https://wpt.fyi/results/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=281206
[Bug 281206] Disable some legacy MathML attributes and values on all ports
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