RESOLVED FIXED309279
[Scroll anchoring] Flip state back to `preview` 
https://bugs.webkit.org/show_bug.cgi?id=309279
Summary [Scroll anchoring] Flip state back to `preview`
Simon Fraser (smfr)
Reported 2026-03-05 10:49:07 PST
Flip back to preview while we investigate some issues with Facebook and Slack.
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2026-03-05 10:49:14 PST
<rdar://problem/171826656>
Simon Fraser (smfr)
Comment 2 2026-03-05 10:52:22 PST
Pull request: https://github.com/WebKit/WebKit/pull/59989
EWS
Comment 3 2026-03-05 19:03:42 PST
Committed 308771@main (d123c189a096): <https://commits.webkit.org/308771@main> Reviewed commits have been landed. Closing PR #59989 and removing active labels.
itomkowicz
Comment 4 2026-03-25 04:45:19 PDT
Is there a target release for re-enabling this?
Simon Fraser (smfr)
Comment 5 2026-03-25 10:26:49 PDT
I can't say anything about future releases, but if you have a site where it's important and I can test it, let me know.
itomkowicz
Comment 6 2026-03-26 01:50:54 PDT
Thank you. It's about choosing implementation for Blazor virtualized lists anchoring (https://github.com/dotnet/aspnetcore/pull/65951#issuecomment-4125944093). Currently we are going for leveraging native anchoring with a fallback to manual compensation when the native support is not available so you will be able to test it with dotnet version where it lands. I can attach a sample app for tests after the feature gets in, if you are interested.
Simon Fraser (smfr)
Comment 7 2026-03-26 08:52:48 PDT
I can tell you that it's not going to be in 26.x.
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