Bug 157606 - CSS transition-property doesn't accept "<custom-ident>"
Summary: CSS transition-property doesn't accept "<custom-ident>"
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Major
Assignee: Nobody
URL: https://drafts.csswg.org/css-transiti...
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2016-05-11 20:34 PDT by yisibl
Modified: 2016-06-05 21:31 PDT (History)
8 users (show)

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Description yisibl 2016-05-11 20:34:11 PDT
Such as WebKit doesn't support:

transition-property: foo;
transition-property: --foo; /* CSS variables */
transition-property: -webkit-foo;
transition-property: -foo-bar;
transition-property: 👻; /* Emoji */

transition: foo;
transition: --foo;
transition: -webkit-foo;
transition: -foo-bar;
transition: 👻; /* Emoji */


The most important is that some of the automatic generation of prefix tools(Autoprefixer) once generated WebKit does not support the attributes with the prefix, will lead to the entire transition property failure.

e.g.

transition: -webkit-mask-position, mask-position;

This should be a perfectly valid value,other browsers do not have such a problem.
Comment 1 Radar WebKit Bug Importer 2016-06-05 21:31:55 PDT
<rdar://problem/26644856>