Bug 254204 - Checking for nested CSS support with CSS.supports("selector(&)") doesn't work
Summary: Checking for nested CSS support with CSS.supports("selector(&)") doesn't work
Status: RESOLVED DUPLICATE of bug 252301
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-21 02:12 PDT by Sam Willis
Modified: 2023-03-21 10:27 PDT (History)
1 user (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Sam Willis 2023-03-21 02:12:47 PDT 
Checking for nested css support (#223497, #249263) via JavaScript using `CSS.supports("selector(&)")` doesn't work. I believe the expected behaviour is that it would return true in browsers that do support it (such as Safari Technology Preview), Chrome Canary does return true for this check.
Comment 1 Sam Sneddon [:gsnedders] 2023-03-21 08:37:21 PDT 
This looks like a dupe of Bug 252301.

What version were you testing?
Comment 2 Sam Willis 2023-03-21 10:14:00 PDT 
Sorry, missed that in my search.

Tested on latest Safari Technology Preview, version 165.

Just tried to run the latest build from https://webkit.org/build-archives/ (for the first time) but can't get it to run. Will check on the new Tech Preview when I assume it drops in the next couple of days.
Comment 3 Tim Nguyen (:ntim) 2023-03-21 10:27:30 PDT 
Bug 252301 should be in the next STP.

*** This bug has been marked as a duplicate of bug 252301 ***