Bug 293438

Summary: [css-anchor-position-1] anchor-scope scopes all names instead of affected names
Product: WebKit Reporter: fantasai <fantasai.bugs>
Component: CSSAssignee: fantasai <fantasai.bugs>
Status: RESOLVED FIXED    
Severity: Normal CC: koivisto, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Local Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 291856    
Attachments:
Description Flags
testcase none

fantasai
Reported 2025-05-22 11:21:40 PDT
Created attachment 475341 [details] testcase Overview: The anchor-scope property traps the specified anchor-names from being exposed outside the element's subtree. But our implementation traps any anchor that happens to have a matching name, even if it has other names which are not trapped. Steps to Reproduce: 1. Create an anchor with two anchor names. 2. Wrap it in an anchor-scope that only has one of those names. 3. Try to attach an anchor outside this subtree to the unscoped name. Expected Result: Attachment works. Actual Result: Attachment does not work. Additional Information: See anchorScopeForAnchorElement() for the source of the problem.
Attachments
testcase (294 bytes, text/html)
2025-05-22 11:21 PDT, fantasai 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-05-22 11:21:51 PDT
<rdar://problem/151866809>
fantasai
Comment 2 2025-05-26 21:04:43 PDT
Pull request: https://github.com/WebKit/WebKit/pull/45935
EWS
Comment 3 2025-05-29 15:02:41 PDT
Committed 295576@main (013f4f81fdd5): <https://commits.webkit.org/295576@main> Reviewed commits have been landed. Closing PR #45935 and removing active labels.
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