220532 2021-01-11 22:43:46 -0800 [selectors] :host(:not(.a .b)) should be an invalid selector 2025-05-01 18:28:44 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified NEW BrowserCompat, InRadar, WebExposed P2 Normal --- 148695 1 rego koivisto ahmad.saleem792 ap bfulgham rniwa simon.fraser webkit-bug-importer zalan oldest_to_newest 1718902 0 rego 2021-01-11 22:43:46 -0800 There's only one test case failing in the following WPT test: https://wpt.fyi/results/css/selectors/parsing/parse-not.html That test case is checking that ":host(:not(.a .b))" is an invalid selector. It's passing in Chromium and Firefox, but failing in WebKit. 1720473 1 webkit-bug-importer 2021-01-18 22:44:13 -0800 <rdar://problem/73341243> 2114585 2 alexbdamac 2025-05-01 18:28:44 -0700 Pull request: https://github.com/WebKit/WebKit/pull/44823