Bug 229804 - Remove (DOM Style L2) CSSValue/CSSPrimitiveValue/CSSValueList
Summary: Remove (DOM Style L2) CSSValue/CSSPrimitiveValue/CSSValueList
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: WebKit Local Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
: 244906 (view as bug list)
Depends on: 229912
Blocks:
  Show dependency tree / graph
 
Reported: 2021-09-02 06:41 PDT by Sam Sneddon [:gsnedders]
Modified: 2022-09-07 15:36 PDT (History)
3 users (show)

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Description Sam Sneddon [:gsnedders] 2021-09-02 06:41:43 PDT 
These were never supported in IE/Edge, and were dropped in Chrome 40 (2015-01-21) and Firefox 62 (2018-09-05). As such, since 2018 we've been the only browser engine to support these.

While in some ways this has been supplanted by CSS Typed OM (see Bug 175733), Firefox nevertheless dropped support without adding support for CSS Typed OM, hence I don't think it makes sense to be the outlier and the only browser supporting these APIs.
Comment 1 Sam Sneddon [:gsnedders] 2021-09-02 08:25:25 PDT 
Others have informed that some applications make use of these APIs (including via WK1), as such we're probably (at least in the short-term) limited to putting these behind a flag.
Comment 2 Radar WebKit Bug Importer 2021-09-09 06:42:16 PDT 
<rdar://problem/82922468>
Comment 3 Sam Sneddon [:gsnedders] 2021-12-13 06:49:21 PST 
At least currently, CSSPrimitiveValue is used by fingerprint.js to detect WebKit: https://github.com/fingerprintjs/fingerprintjs/blob/09d11794dfc8da0365983bdbe638b78e2977cfd4/src/utils/browser.ts#L77
Comment 4 Sam Sneddon [:gsnedders] 2022-09-07 15:36:53 PDT 
*** Bug 244906 has been marked as a duplicate of this bug. ***