306258 2026-01-26 02:44:48 -0800 `height: 100%` has wrong calculation for img as grid cell nested inside flexbox 2026-04-29 10:03:28 -0700 1 1 1 Unclassified WebKit Layout and Rendering Safari 26 Unspecified Unspecified RESOLVED FIXED https://github.com/web-platform-tests/wpt/pull/59550 BrowserCompat, InRadar P2 Normal --- 1 oliverjash sgill26 ahmad.saleem792 bfulgham karlcow sgill26 simon.fraser webkit-bug-importer zalan oldest_to_newest 2175069 0 oliverjash 2026-01-26 02:44:48 -0800 https://codepen.io/OliverJAsh/pen/KwMvXKW In Chrome and Firefox the `height: 100%` on `img` is computed as the height of the grid row. ✅ However, in Safari, the `height: 100%` on `img` is computed as the height of the container. ❌ Interestingly, if you remove the parent flexbox, the `height: 100%` is computed as the height of the row. ✅ 2175077 1 ahmad.saleem792 2026-01-26 03:22:17 -0800 *** Chrome Canary 146.0.7651.1 (Official Build) canary-dcheck (arm64) *** Image is not stretched in container. *** Firefox Nightly 149 (20260124212758) *** Image is not stretched in container. *** WebKit ToT (306197@main) - Minibrowser *** Image is *stretched* in container. 2177114 2 webkit-bug-importer 2026-02-02 02:45:11 -0800 <rdar://problem/169431440> 2204995 3 sgill26 2026-04-27 10:55:07 -0700 Pull request: https://github.com/WebKit/WebKit/pull/63559 2205776 4 ews-feeder 2026-04-29 07:41:02 -0700 Committed 312281@main (bd1628731f5e): <https://commits.webkit.org/312281@main> Reviewed commits have been landed. Closing PR #63559 and removing active labels. 2205822 5 sgill26 2026-04-29 10:03:28 -0700 Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/59550