306818 2026-02-02 16:41:11 -0800 Incorrect outlineWidth in result of getComputedStyle when OutlineStyle is None 2026-02-09 16:42:12 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified REOPENED InRadar P2 Normal --- 1 mechannik512 webkit-unassigned karlcow sam webkit-bug-importer oldest_to_newest 2177346 0 mechannik512 2026-02-02 16:41:11 -0800 If OutlineStyle is None, getComputedStyle should return outlineWidth equal to 0, but now it returns 3 2177348 1 mechannik512 2026-02-02 16:55:18 -0800 Pull request: https://github.com/WebKit/WebKit/pull/57740 2177387 2 sam 2026-02-02 18:54:36 -0800 As mentioned in the PR, the current behavior is correct as of CSS UI 4, due to the CSSWG resolution https://github.com/w3c/csswg-drafts/issues/11494. Is this change in behavior causing an issue for you? 2177473 3 mechannik512 2026-02-03 00:17:30 -0800 > Is this change in behavior causing an issue for you? Yes it does (custom JS code of making element screenshot on page, when calculating element coords, includes element outline width, which just changed for all elements) But since it aligns with CSS UI 4, its not a bug. 2177533 4 mechannik512 2026-02-03 04:54:58 -0800 Wait, shouldn't we still return "0px" when outline is "none" for compatibility reasons, as described here? https://github.com/w3c/csswg-drafts/issues/11494#issuecomment-2675800489 2177955 5 sam 2026-02-04 09:20:32 -0800 Perhaps, re-opening this while we take this up with the working group. I filed https://github.com/w3c/csswg-drafts/issues/13451 to start that discussion. 2177956 6 sam 2026-02-04 09:22:12 -0800 mechannik512, are you able to provide a link to the content where this bug is hitting, or is this something that is private? 2177957 7 mechannik512 2026-02-04 09:27:07 -0800 (In reply to Sam Weinig from comment #6) > mechannik512, are you able to provide a link to the content where this bug > is hitting, or is this something that is private? Not private. Its piece of code where we calculate coords of an element so we could extract that area from viewport screenshot. Here is link to PR where i fix it on the side of our tool: https://github.com/gemini-testing/testplane/pull/1198/changes 2179668 8 webkit-bug-importer 2026-02-09 16:42:12 -0800 <rdar://problem/170011782>