RESOLVED FIXED290573
[Grid] Allow extrinsically sized grid to perform simplified layout when grid items are mutated 
https://bugs.webkit.org/show_bug.cgi?id=290573
Summary [Grid] Allow extrinsically sized grid to perform simplified layout when grid ...
Sammy Gill
Reported 2025-03-27 15:38:23 PDT
If a grid is extrinsically sized then, in theory, any mutations within a grid item should be contained within the formatting context inside the grid item and should not bubble up into the grid and any ancestor renderers/formatting contexts. In this case we could potentially mark the grid and any ancestors as only needed simplified layout
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Radar WebKit Bug Importer
Comment 1 2025-03-27 15:38:44 PDT
<rdar://problem/148055966>
Sammy Gill
Comment 2 2025-03-27 16:27:35 PDT
Pull request: https://github.com/WebKit/WebKit/pull/43012
Sammy Gill
Comment 3 2025-03-31 09:45:32 PDT
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/51728
EWS
Comment 4 2025-03-31 19:54:02 PDT
Committed 292994@main (83bba6965f88): <https://commits.webkit.org/292994@main> Reviewed commits have been landed. Closing PR #43012 and removing active labels.
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