230274 2021-09-14 12:54:50 -0700 Do not propagate body style to viewport when html or body element is contained 2022-04-15 03:09:36 -0700 1 1 1 Unclassified WebKit CSS Safari Technology Preview All All RESOLVED FIXED InRadar P2 Normal --- 1 rune.lillesveen webkit-unassigned bfulgham dino kevin_neal koivisto rbuis simon.fraser webkit-bug-importer oldest_to_newest 1793392 0 rune.lillesveen 2021-09-14 12:54:50 -0700 Tests like [1] fail in WebKit. The css-contain spec[2] has been changed after the CSSWG resolution in [3] stopping propagation from body to viewport for non-none used containment on root and body. [1] https://wpt.fyi/css/css-contain/contain-body-bg-001.html [2] https://drafts.csswg.org/css-contain-1/#c3 [3] https://github.com/w3c/csswg-drafts/issues/5913 1793706 1 kevin_neal 2021-09-15 08:16:21 -0700 Thank you for filing. The appropriate engineers have been copied. 1793707 2 webkit-bug-importer 2021-09-15 08:16:54 -0700 <rdar://problem/83151391> 1861774 3 rbuis 2022-04-15 03:09:36 -0700 This was fixed by r244980.