304808 2025-12-31 09:46:29 -0800 `counter-*` properties computed value serialization depends on HashMap iteration order 2026-01-04 13:45:12 -0800 1 1 1 Unclassified WebKit CSS Safari 18 Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 sam sam koivisto webkit-bug-importer oldest_to_newest 2168721 0 sam 2025-12-31 09:46:29 -0800 The computed value serialization of the `counter-*` properties is constructed by iterating a HashMap, which leads to random (or at least as random as the hash function is) output orderings. Like with all other properties, the list should probably be ordered matching the specified order. 2168722 1 477883 sam 2025-12-31 09:51:14 -0800 Created attachment 477883 Test case 2168730 2 sam 2025-12-31 12:22:06 -0800 Pull request: https://github.com/WebKit/WebKit/pull/55970 2169145 3 ews-feeder 2026-01-04 13:44:48 -0800 Committed 305086@main (dcaee9e83acc): <https://commits.webkit.org/305086@main> Reviewed commits have been landed. Closing PR #55970 and removing active labels. 2169147 4 webkit-bug-importer 2026-01-04 13:45:12 -0800 <rdar://problem/167518994> 477883 2025-12-31 09:51:14 -0800 2025-12-31 09:51:14 -0800 Test case counter-order.html text/html 554 sam PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KICA8c3R5bGU+CiAgICAjY29uc29sZSB7CiAg ICAgIHdpZHRoOiA1MDBweDsKICAgIH0KICA8L3N0eWxlPgo8L2hlYWQ+Cjxib2R5PgogIDxkaXYg aWQ9InRhcmdldCIgc3R5bGU9ImNvdW50ZXItcmVzZXQ6IGEgMSBiIDIgYyAzIGQgNCBlIDUiPjwv ZGl2PgogIDxwcmUgaWQ9ImNvbnNvbGUiPjwvcHJlPgogIDxzY3JpcHQ+CiAgICBjb25zdCB0YXJn ZXQgPSBkb2N1bWVudC5nZXRFbGVtZW50QnlJZCgndGFyZ2V0Jyk7CiAgICBjb25zdCBjb25zb2xl ID0gZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoJ2NvbnNvbGUnKTsKCiAgICBjb25zb2xlLnRleHRD b250ZW50ID0gYGNvdW50ZXItcmVzZXQgKHNwZWNpZmllZCk6ICR7dGFyZ2V0LnN0eWxlWydjb3Vu dGVyLXJlc2V0J119XG5gCiAgICAgICAgICAgICAgICAgICAgICAgICsgYGNvdW50ZXItcmVzZXQg KGNvbXB1dGVkKTogICR7d2luZG93LmdldENvbXB1dGVkU3R5bGUodGFyZ2V0KVsnY291bnRlci1y ZXNldCddfVxuYDsKCiAgPC9zY3JpcHQ+CjwvYm9keT4KPC9odG1sPgo=