255335 2023-04-12 06:54:42 -0700 hidden attribute doesn't work on select's option and optgroup 2023-05-15 01:01:13 -0700 1 1 1 Unclassified WebKit Layout and Rendering Safari 16 Mac (Apple Silicon) macOS 13 NEW https://bugs.webkit.org/show_bug.cgi?id=169039 https://bugs.webkit.org/show_bug.cgi?id=8351 https://jsfiddle.net/73y0fmek/ BrowserCompat, InRadar P2 Normal --- 1 astorino.design webkit-unassigned akeerthi ap bfulgham karlcow simon.fraser webkit-bug-importer zalan oldest_to_newest 1948212 0 astorino.design 2023-04-12 06:54:42 -0700 Hello, just reporting that option elements with the hidden attribute are broken and they're still visible and can be selected. DEMO: https://jsfiddle.net/73y0fmek/ The option "1" and the option group should not be visible like the spec say. Works with firefox and Chrome/Edge. 1948231 1 webkit-bug-importer 2023-04-12 07:57:30 -0700 <rdar://problem/107939825> 1948388 2 ap 2023-04-12 17:28:16 -0700 We had earlier reports of this, but they seem to be duped to different bugs that are all similar yet not obviously the same. This may need some cleanup. Cf. bug 8351, bug 25623, bug 62900, bug 169039, bug 191581 1948413 3 karlcow 2023-04-12 19:40:01 -0700 In Bug 191581, Chris has done a bit of analysis about the possible why? I followed the track of https://bugs.webkit.org/show_bug.cgi?id=191581#c2 where he said: ``` Both HTMLOptionElement and HTMLOptGroupElement have the following override: bool rendererIsNeeded(const RenderStyle&) final { return false; } Not sure why they do not need a renderer. ``` If we go down following the history, it has been added at a very early stage. Thu, 6 Jul 2006 05:47:30 +0000 https://searchfox.org/wubkat/diff/1018550ecbdbd0f48c091502b7e2a0f26f8c9481/WebCore/html/HTMLOptGroupElement.h#46 Maybe… the solution is that nobody tried to remove this. 1948416 4 karlcow 2023-04-12 19:49:29 -0700 I'm trying to remove them in a local branch to see what it does. 1948487 5 karlcow 2023-04-13 07:27:51 -0700 So removing the RendererIsNeeded doesn't change anything to the behavior. It doesn't break things, but it doesn't improve things.