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Add compat data for headingoffset and headingreset attributes#29931

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Th3S4mur41 wants to merge 2 commits into
mdn:mainfrom
Th3S4mur41:feat/headingoffset
Open

Add compat data for headingoffset and headingreset attributes#29931
Th3S4mur41 wants to merge 2 commits into
mdn:mainfrom
Th3S4mur41:feat/headingoffset

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@Th3S4mur41

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Summary

Firefox and Chrome are prototyping headingoffset and headingreset attributes behind flags

The feature is currently available in:

  • Firefox Nightly (153) with the flag dom.headingoffset.enabled
  • Chrome 151 behind #enable-experimental-web-platform-features

Test results and supporting details

Verified support with the Following CodePen: https://codepen.io/editor/th3s4mur41/pen/019e8da3-90df-7090-ae14-3e4541413757

@github-actions github-actions Bot added the data:html Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML label Jun 26, 2026
@github-actions github-actions Bot added the size:m [PR only] 25-100 LoC changed label Jun 26, 2026
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

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data:html Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML size:m [PR only] 25-100 LoC changed

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