These newly imported WPT tests are failing: LayoutTests/imported/w3c/web-platform-tests/css/css-flexbox/abspos/position-absolute-012.html LayoutTests/imported/w3c/web-platform-tests/css/css-flexbox/abspos/position-absolute-013.html LayoutTests/imported/w3c/web-platform-tests/css/css-flexbox/abspos/position-absolute-014.html LayoutTests/imported/w3c/web-platform-tests/css/css-flexbox/abspos/position-absolute-015.html
<rdar://problem/74278258>
All these tests are passing now.
(In reply to Vitaly Dyachkov from comment #2) > All these tests are passing now. No they are not. Check https://wpt.fyi/results/css/css-flexbox/abspos?label=experimental&label=master&aligned we're failing several subtests. I've uploaded https://bugs.webkit.org/show_bug.cgi?id=230336 long time ago fixing many of them but it's still unreviewed.