Bug 189692 - Implement CSS Custom Properties and Values API Level 1
Summary: Implement CSS Custom Properties and Values API Level 1
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on: 189694 189764 189819 189909 190038 190039 190303 192324 192325 210963 247212 248871 249027 249071 249088 249096 249107 249127 249161 249216 249293 249302 249305 249465 249554 249579 249763 249774 249981 250446 250448 250556 250567 250571 250703 250898 251084 251141 251517 251575 251672
Blocks: 189834
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Reported: 2018-09-17 23:59 PDT by Justin Michaud
Modified: 2023-07-04 19:49 PDT (History)
20 users (show)

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Comment 1 Justin Michaud 2018-09-18 00:06:49 PDT 
<rdar://30061591>
Comment 2 Simon Fraser (smfr) 2018-09-18 11:07:43 PDT 
You should make a patch for Source/WebCore/features.json to say this is "under development".
Comment 3 legacyazd 2022-05-16 01:56:05 PDT 
This is a useful feature. See the Stack Overflow post: [animating gradients in CSS](https://stackoverflow.com/a/63848864/8583692) for a use case.

Only Firefox (related bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1684605) and Safari has not yet implemented this.
Comment 4 Antti Koivisto 2023-01-04 09:19:38 PST 
This is enabled by default since <https://commits.webkit.org/258246@main>
Comment 5 Sergey Rubanov 2023-07-04 19:34:18 PDT 
What is the stable version of Safari where this feature was shipped? Was it Safari 16.4? I want to update the https://ishoudinireadyyet.com table.
Comment 6 Sergey Rubanov 2023-07-04 19:49:07 PDT 
Just found it in the 16.4 release notes (https://developer.apple.com/documentation/safari-release-notes/safari-16_4-release-notes)