293438 2025-05-22 11:21:40 -0700 [css-anchor-position-1] anchor-scope scopes all names instead of affected names 2025-05-29 15:02:43 -0700 1 1 1 Unclassified WebKit CSS WebKit Local Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 291856 1 fantasai.bugs fantasai.bugs koivisto webkit-bug-importer oldest_to_newest 2119031 0 475341 fantasai.bugs 2025-05-22 11:21:40 -0700 Created attachment 475341 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. 2119032 1 webkit-bug-importer 2025-05-22 11:21:51 -0700 <rdar://problem/151866809> 2119789 2 fantasai.bugs 2025-05-26 21:04:43 -0700 Pull request: https://github.com/WebKit/WebKit/pull/45935 2120500 3 ews-feeder 2025-05-29 15:02:41 -0700 Committed 295576@main (013f4f81fdd5): <https://commits.webkit.org/295576@main> Reviewed commits have been landed. Closing PR #45935 and removing active labels. 475341 2025-05-22 11:21:40 -0700 2025-05-22 11:21:40 -0700 testcase anchor-scope.html text/html 294 fantasai.bugs PCFET0NUWVBFIGh0bWw+Cjx0aXRsZT5hbmNob3Itc2NvcGUgdGVzdDwvdGl0bGU+Cgo8ZGl2IHN0 eWxlPSJtYXJnaW46IDJlbTsgYW5jaG9yLXNjb3BlOiAtLWJhciI+CiAgPGRpdiBzdHlsZT0iYW5j aG9yLW5hbWU6IC0tZm9vLCAtLWJhciI+QW5jaG9yIC0tZm9vPC9kaXY+CjwvZGl2PgoKPGRpdiBz dHlsZT0icG9zaXRpb246IGFic29sdXRlOyBwb3NpdGlvbi1hbmNob3I6IC0tZm9vOyBwb3NpdGlv bi1hcmVhOiB0b3A7IGJvcmRlcjogc29saWQgb3JhbmdlIj5hbmNob3JlZCB0byB0b3Agb2YgLS1m b288L2Rpdj4K