RESOLVED FIXED 246229
[css-flexbox] Use initial scroll position when computing baseline of a box 
https://bugs.webkit.org/show_bug.cgi?id=246229
Summary [css-flexbox] Use initial scroll position when computing baseline of a box
Sammy Gill
Reported 2022-10-07 12:37:34 PDT
RenderFlexibleBox::layoutAndPlaceChildren has a FIXME that stems from a Blink merge (https://bugs.webkit.org/show_bug.cgi?id=168657). It is not clear what it refers to, but I believe it is the following from the CSS Align 3 spec: For the purposes of finding the baselines of a box, it and all its in-flow descendants with a scrolling mechanism (see the overflow property) must be considered as if scrolled to their initial scroll position. Furthermore, if, in the case of a scroll container box, the resulting position of a first/last baseline is past a box’s end/start border edge, its position is clamped to that border edge. https://www.w3.org/TR/css-align-3/#baseline-rules Should figure out if this is actually what it refers to or if it is some other issue
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Radar WebKit Bug Importer
Comment 1 2022-10-07 12:37:58 PDT
<rdar://problem/100908615>
Sammy Gill
Comment 2 2023-05-01 16:22:48 PDT
Pull request: https://github.com/WebKit/WebKit/pull/13343
EWS
Comment 3 2023-05-11 10:13:48 PDT
Committed 263974@main (1e66b0fc9545): <https://commits.webkit.org/263974@main> Reviewed commits have been landed. Closing PR #13343 and removing active labels.
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