Bug 223814

Summary:	Support chaining tree-abiding pseudo elements after ::slotted()
Product:	WebKit	Reporter:	Tim Nguyen (:ntim) <ntim>
Component:	CSS	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	alanodaval, emilio, kevin.flanagan, koivisto, rniwa, webkit-bug-importer, woodlxf00
Priority:	P2	Keywords:	InRadar
Version:	Safari 14
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:	178237
Bug Blocks:	148695

Description Tim Nguyen (:ntim) 2021-03-26 12:57:14 PDT

http://wpt.live/css/css-scoping/slotted-placeholder.html

Comment 1 Radar WebKit Bug Importer 2021-03-26 12:57:34 PDT

<rdar://problem/75897956>

Comment 2 Tim Nguyen (:ntim) 2021-03-29 10:30:45 PDT

This is about other tree-abiding pseudos (before/after/marker/file-selector-button/placeholder) as well. Some `::slotted()` parsing WPT fail because of this.

Comment 3 Antti Koivisto 2021-10-28 02:30:55 PDT

178237 covered before/after/marker