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Update data for MathML <a> element and MathMLAnchorElement - #30454

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chrisdavidmills:mathml-a-element-dom-interface
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Update data for MathML <a> element and MathMLAnchorElement#30454
chrisdavidmills wants to merge 2 commits into
mdn:mainfrom
chrisdavidmills:mathml-a-element-dom-interface

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Summary

Firefox 155 adds support for the MathML <a> element's DOM interface, MathMLAnchorElement. It is currently enabled in Nightly only (the pref is mathml.a.element.enabled). See https://bugzilla.mozilla.org/show_bug.cgi?id=2059312.

This PR:

  • Adds subentries for the MathML <a> element attributes that were missing. Note that this doesn't include download, ping, rel, and referrerpolicy — they are being implemented in a separate bug (https://bugzilla.mozilla.org/show_bug.cgi?id=2064612).
  • Adds a note to the <a> element saying that its DOM interface is currently the MathMLElement interface, not MathMLAnchorElement. This will be the case until MathMLAnchorElement is enabled by default.
  • Updates the MathMLAnchorElement data to include the impl_url for all features. This is still listed as supported in preview only.

Test results and supporting details

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@github-actions github-actions Bot added data:api Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API data:mathml Compat data for MathML features. https://developer.mozilla.org/docs/Web/MathML size:l [PR only] 101-1000 LoC changed labels Sep 8, 2026
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github-actions Bot commented Sep 8, 2026

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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

@Elchi3 Elchi3 left a comment

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  • Updates the MathMLAnchorElement data to include the impl_url for all features. This is still listed as supported in preview only.

I don't think this is necessary. The bug add no additional value as it is resolved fixed already. If you have a bug that tracks shipping, then we can add it but I wouldn't this one.

@chrisdavidmills

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  • Updates the MathMLAnchorElement data to include the impl_url for all features. This is still listed as supported in preview only.

I don't think this is necessary. The bug add no additional value as it is resolved fixed already. If you have a bug that tracks shipping, then we can add it but I wouldn't this one.

OK, removed. I don't have a better URL to suggest.

@github-actions github-actions Bot removed the data:api Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API label Sep 8, 2026
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data:mathml Compat data for MathML features. https://developer.mozilla.org/docs/Web/MathML size:l [PR only] 101-1000 LoC changed

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