212049 2020-05-18 15:17:06 -0700 :is() / :where() parsing allows breaking shadow tree encapsulation 2024-02-08 13:15:40 -0800 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified NEW BrowserCompat, InRadar, WPTImpact P2 Normal --- 148695 1 emilio webkit-unassigned ahmad.saleem792 bfulgham koivisto rniwa simon.fraser webkit-bug-importer zalan oldest_to_newest 1653773 0 emilio 2020-05-18 15:17:06 -0700 I'm adding some tests in https://bugzilla.mozilla.org/show_bug.cgi?id=1632647. But TLDR, these shouldn't probably parse, or if you disagree they probably shouldn't match: ::part(foo):is([attr='value']) :host(:is(div .foo)) 1958420 1 ahmad.saleem792 2023-05-27 09:56:23 -0700 Following WPT test was pushed as part of Mozilla bug: https://github.com/web-platform-tests/wpt/pull/23711/files and we are only failing single test: https://wpt.fyi/results/css/selectors/is-where-parsing.html?label=master&label=experimental&aligned&q=is-where-parsing.html >>> Nested inside :host, with combinators Don't know whether we have it as separate tracking or not but still adding 'BrowserCompat' and "WPTImpact' tags for future tracking. 2011873 2 webkit-bug-importer 2024-02-08 13:15:40 -0800 <rdar://problem/122574812>