anchor-name: add position_after_layout behavioral subfeature#29282
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anchor-name: add position_after_layout behavioral subfeature#29282
anchor-name: add position_after_layout behavioral subfeature#29282Conversation
This captures the specification change, where anchor positioning happens after layout, such as zooms or transforms. Issue: mdn#28499 Issue: https://issues.chromium.org/issues/382294252#comment7 Issue: https://bugzilla.mozilla.org/show_bug.cgi?id=1993692 Issue: https://bugs.webkit.org/show_bug.cgi?id=289743 Issue: https://bugs.webkit.org/show_bug.cgi?id=309921 Issue: https://bugs.webkit.org/show_bug.cgi?id=307660 Issue: w3c/csswg-drafts#8584 (comment) Issue: web-platform-dx/web-features#3558 (comment)
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs). |
ddbeck
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position_after_layout behavioral subfeatureanchor-name: add position_after_layout behavioral subfeature
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Also, I'll add that I considered marking this as |
caugner
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Mar 20, 2026
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Summary
This captures the specification change, where anchor positioning happens after layout, such as zooms or transforms. Originally reported in #28499.
Test results and supporting details
This spec change occurred in w3c/csswg-drafts#8584 (comment). The spec text can be found in the paragraph beginning with:
Chromium appears to be the only engine implementing. See Chromium bug 1993692 (comment #7).
Firefox bug 1993692 tracks this in Gecko.
I found three related bugs against WebKit, but none are confirmed or accepted. Since I don't know which one will ultimately be worked on, I used them all for
impl_url. See related issues below for a complete list.Related issues