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Fix some obscure old version ranges#29672

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caugner merged 1 commit into
mdn:mainfrom
ddbeck:push-tuurvznqyunu
May 15, 2026
Merged

Fix some obscure old version ranges#29672
caugner merged 1 commit into
mdn:mainfrom
ddbeck:push-tuurvznqyunu

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@ddbeck ddbeck commented May 13, 2026

Summary

These old and obscure version ranges caused some problems in changing feature authoring in web-features , so I'm updating them to avoid a more complex problem.

Test results and supporting details

There are various citations below, but the short version is:

  • Chrome could not have shipped mixed content blocking before Chrome 43 and circumstantial evidence (the dates of Chrome Status entries) suggests Chrome 44.
  • Firefox shipped mixed content blocking in Firefox 23, according to release notes and the dates given by related bugs.
  • Safari shipped mixed content blocking in Safari 9, according to Stack Overflow questions and user support forum posts. This is consistent with the commit date for shipping it.
  • Circumstantial evidence (such as comments in GitHub searches) suggests that some version of IE supported display: table-caption, so I think it was supported from Edge 12. This is is a relatively low-confidence item in my research, but I figure there's very little harm in getting it wrong at this point.

Related issues

@github-actions github-actions Bot added data:http Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS size:s [PR only] 7-24 LoC changed labels May 13, 2026
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

@caugner caugner merged commit 35c8c78 into mdn:main May 15, 2026
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@ddbeck ddbeck deleted the push-tuurvznqyunu branch May 15, 2026 22:25
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data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS data:http Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP size:s [PR only] 7-24 LoC changed

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