294129 2025-06-06 10:58:13 -0700 [css-anchor-position-1] anchor-name mutation doesn't propagate to its anchor-positioned dependency 2025-06-13 01:47:52 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://github.com/web-platform-tests/wpt/pull/53120 InRadar P2 Normal --- 1 kiet.ho koivisto kiet.ho koivisto webkit-bug-importer oldest_to_newest 2122188 0 475498 kiet.ho 2025-06-06 10:58:13 -0700 Created attachment 475498 Test case See test case. When the same anchor-name is reassigned from one element to another, we don't invalidate the style of anchor-positioned elements that anchors to that anchor name. 2122189 1 webkit-bug-importer 2025-06-06 10:58:21 -0700 <rdar://problem/152727401> 2122199 2 475499 kiet.ho 2025-06-06 11:15:38 -0700 Created attachment 475499 Another test case Another test case (may or may not be the same issue) 2122605 3 475515 kiet.ho 2025-06-09 14:33:27 -0700 Created attachment 475515 Another test case In this test case, the anchor-positioned element anchors to anchor named --anchor. Initially, only #anchor-1 has that anchor name, so the anchor-positioned element should anchor to #anchor-1. After change(), both #anchor-1 and #anchor-2 has that anchor name. Because #anchor-2 is later in tree order, #anchor-2 wins out, and the anchor-positioned element should anchor to #anchor-2. This is the behavior in Chrome, but in Safari, the anchor-positioned element still anchors to #anchor-1 2123176 4 kiet.ho 2025-06-11 20:08:55 -0700 Pull request: https://github.com/WebKit/WebKit/pull/46642 2123284 5 koivisto 2025-06-12 08:07:32 -0700 Pull request: https://github.com/WebKit/WebKit/pull/46661 2123469 6 ews-feeder 2025-06-13 01:27:55 -0700 Committed 296184@main (16977f92e64a): <https://commits.webkit.org/296184@main> Reviewed commits have been landed. Closing PR #46661 and removing active labels. 2123470 7 koivisto 2025-06-13 01:47:52 -0700 Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/53120 475498 2025-06-06 10:58:13 -0700 2025-06-06 10:58:13 -0700 Test case anchor-function-when-anchor-name-reassigned-to-another-element.html text/html 1351 kiet.ho PCFET0NUWVBFIGh0bWw+Cgo8c3R5bGU+CiAgICAuY29udGFpbmluZy1ibG9jayB7CiAgICAgICAg cG9zaXRpb246IHJlbGF0aXZlOwogICAgICAgIHdpZHRoOiAzMDBweDsKICAgICAgICBoZWlnaHQ6 IDMwMHB4OwoKICAgICAgICBib3JkZXI6IDFweCBibGFjayBzb2xpZDsKICAgIH0KCiAgICAuY2Vs bCB7CiAgICAgICAgd2lkdGg6IDEwMHB4OwogICAgICAgIGhlaWdodDogMTAwcHg7CiAgICB9Cgog ICAgLmFuY2hvci1jZWxsIHsKICAgICAgICBiYWNrZ3JvdW5kOiBncmVlbjsKICAgICAgICBjb2xv cjogd2hpdGU7CiAgICB9CgogICAgI2FuY2hvci0xIHsKICAgICAgICBwb3NpdGlvbjogYWJzb2x1 dGU7CiAgICAgICAgdG9wOiAwOwogICAgICAgIGxlZnQ6IDA7CiAgICB9CgogICAgI2FuY2hvci0y IHsKICAgICAgICBwb3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAgdG9wOiAxMDBweDsKICAgICAg ICBsZWZ0OiAxMDBweDsKICAgIH0KCiAgICBbZGF0YS1hY3RpdmUtYW5jaG9yPSIxIl0gI2FuY2hv ci0xIHsKICAgICAgICBhbmNob3ItbmFtZTogLS1hbmNob3I7CiAgICB9CgogICAgW2RhdGEtYWN0 aXZlLWFuY2hvcj0iMiJdICNhbmNob3ItMiB7CiAgICAgICAgYW5jaG9yLW5hbWU6IC0tYW5jaG9y OwogICAgfQoKICAgIC5hbmNob3ItcG9zaXRpb25lZC1jZWxsIHsKICAgICAgICBiYWNrZ3JvdW5k OiBvcmFuZ2U7CiAgICAgICAgY29sb3I6IHdoaXRlOwoKICAgICAgICBwb3NpdGlvbjogYWJzb2x1 dGU7CiAgICAgICAgdG9wOiBhbmNob3IoLS1hbmNob3IgYm90dG9tKTsKICAgICAgICBsZWZ0OiBh bmNob3IoLS1hbmNob3IgcmlnaHQpOwogICAgfQo8L3N0eWxlPgoKPGJvZHk+CiAgICA8ZGl2IGNs YXNzPSJjb250YWluaW5nLWJsb2NrIiBkYXRhLWFjdGl2ZS1hbmNob3I9IjIiIGlkPSJjYiI+CiAg ICAgICAgQ29udGFpbmluZyBibG9jawoKICAgICAgICA8ZGl2IGNsYXNzPSJjZWxsIGFuY2hvci1j ZWxsIiBpZD0iYW5jaG9yLTEiPkFuY2hvciAxPC9kaXY+CiAgICAgICAgPGRpdiBjbGFzcz0iY2Vs bCBhbmNob3ItY2VsbCIgaWQ9ImFuY2hvci0yIj5BbmNob3IgMjwvZGl2PgogICAgICAgIDxkaXYg Y2xhc3M9ImNlbGwgYW5jaG9yLXBvc2l0aW9uZWQtY2VsbCI+YW5jaG9yKCkgcG9zaXRpb25lZDwv ZGl2PgogICAgPC9kaXY+CjwvYm9keT4KCjxzY3JpcHQ+CiAgICBjb25zdCBjaGFuZ2UgPSAoKSA9 PiB7CiAgICAgICAgY29uc3QgY2IgPSBkb2N1bWVudC5nZXRFbGVtZW50QnlJZCgiY2IiKTsKICAg ICAgICBjYi5zZXRBdHRyaWJ1dGUoImRhdGEtYWN0aXZlLWFuY2hvciIsICIxIik7CiAgICB9OwoK ICAgIHNldFRpbWVvdXQoY2hhbmdlLCAxMDAwKTsKPC9zY3JpcHQ+Cg== 475499 2025-06-06 11:15:38 -0700 2025-06-06 11:15:38 -0700 Another test case anchor-name-hover.html text/html 370 kiet.ho PHN0eWxlPgouYW5jaG9yLCAudGFyZ2V0IHsKICAgIHdpZHRoOiAxMDBweDsKICAgIGhlaWdodDog MTAwcHg7Cn0KLmFuY2hvciB7CiAgICBiYWNrZ3JvdW5kOiByZWQ7Cn0KLmFuY2hvcjpob3ZlciB7 CiAgICBiYWNrZ3JvdW5kOiBibHVlOwogICAgYW5jaG9yLW5hbWU6IC0tZm9vOwp9Ci50YXJnZXQg ewogICAgcG9zaXRpb24tYW5jaG9yOiAtLWZvbzsKICAgIGxlZnQ6IGFuY2hvcihyaWdodCk7CiAg ICB0b3A6IGFuY2hvcih0b3ApOwogICAgYmFja2dyb3VuZDogZ3JlZW47CiAgICBwb3NpdGlvbjog YWJzb2x1dGU7Cn0KCjwvc3R5bGU+CjxkaXYgY2xhc3M9YW5jaG9yPjwvZGl2Pgo8ZGl2Pgo8ZGl2 IGNsYXNzPXRhcmdldD48L2Rpdj4KPC9kaXY+Cg== 475515 2025-06-09 14:33:27 -0700 2025-06-09 14:33:27 -0700 Another test case anchor-same-name.html text/html 1322 kiet.ho PCFET0NUWVBFIGh0bWw+Cgo8c3R5bGU+CiAgICAuY29udGFpbmluZy1ibG9jayB7CiAgICAgICAg cG9zaXRpb246IHJlbGF0aXZlOwogICAgICAgIHdpZHRoOiAzMDBweDsKICAgICAgICBoZWlnaHQ6 IDMwMHB4OwoKICAgICAgICBvdXRsaW5lOiAxcHggYmxhY2sgc29saWQ7CiAgICB9CgogICAgLmNl bGwgewogICAgICAgIHdpZHRoOiAxMDBweDsKICAgICAgICBoZWlnaHQ6IDEwMHB4OwogICAgfQoK ICAgIC5hbmNob3ItY2VsbCB7CiAgICAgICAgYmFja2dyb3VuZDogZ3JlZW47CiAgICAgICAgY29s b3I6IHdoaXRlOwoKICAgICAgICBvdXRsaW5lOiAxcHggYmxhY2sgc29saWQ7CiAgICB9CgogICAg LmFuY2hvci1uYW1lIHsKICAgICAgICBhbmNob3ItbmFtZTogLS1hbmNob3I7CiAgICB9CgogICAg I2FuY2hvci0xIHsKICAgICAgICBwb3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAgdG9wOiAwOwog ICAgICAgIGxlZnQ6IDA7CiAgICB9CgogICAgI2FuY2hvci0yIHsKICAgICAgICBwb3NpdGlvbjog YWJzb2x1dGU7CiAgICAgICAgdG9wOiAxMDBweDsKICAgICAgICBsZWZ0OiAwOwogICAgfQoKICAg IC5hbmNob3ItcG9zaXRpb25lZC1jZWxsIHsKICAgICAgICBiYWNrZ3JvdW5kOiBvcmFuZ2U7CiAg ICAgICAgY29sb3I6IHdoaXRlOwoKICAgICAgICBwb3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAg dG9wOiBhbmNob3IoLS1hbmNob3IgYm90dG9tKTsKICAgICAgICBsZWZ0OiBhbmNob3IoLS1hbmNo b3IgcmlnaHQpOwogICAgfQo8L3N0eWxlPgoKPGJvZHk+CiAgICA8ZGl2IGNsYXNzPSJjb250YWlu aW5nLWJsb2NrIiBkYXRhLWFjdGl2ZS1hbmNob3I9IjIiIGlkPSJjYiI+CiAgICAgICAgQ29udGFp bmluZyBibG9jawoKICAgICAgICA8ZGl2IGNsYXNzPSJjZWxsIGFuY2hvci1jZWxsIGFuY2hvci1u YW1lIiBpZD0iYW5jaG9yLTEiPkFuY2hvciAxPC9kaXY+CiAgICAgICAgPGRpdiBjbGFzcz0iY2Vs bCBhbmNob3ItY2VsbCIgaWQ9ImFuY2hvci0yIj5BbmNob3IgMjwvZGl2PgogICAgICAgIDxkaXYg Y2xhc3M9ImNlbGwgYW5jaG9yLXBvc2l0aW9uZWQtY2VsbCI+YW5jaG9yKCkgcG9zaXRpb25lZDwv ZGl2PgogICAgPC9kaXY+CjwvYm9keT4KCjxzY3JpcHQ+CiAgICBjb25zdCBjaGFuZ2UgPSAoKSA9 PiB7CiAgICAgICAgY29uc3QgYTIgPSBkb2N1bWVudC5nZXRFbGVtZW50QnlJZCgiYW5jaG9yLTIi KTsKICAgICAgICBhMi5jbGFzc0xpc3QuYWRkKCJhbmNob3ItbmFtZSIpOwoKICAgICAgICBjb25z b2xlLmxvZygiY2hhbmdlZCIpOwogICAgfTsKCiAgICBzZXRUaW1lb3V0KGNoYW5nZSwgMTAwMCk7 Cjwvc2NyaXB0Pgo=