1873608 - New wpt failures in /css/css-conditional/at-supports-selector-webkit-slider-thumb.tentative.html

Status: NEW

(Core :: CSS Parsing and Computation, defect)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Syncing wpt PR 43836 found new untriaged test failures in CI

Tests Affected

New Tests That Don't Pass

• /css/css-conditional/at-supports-selector-webkit-slider-thumb.tentative.html [wpt.fyi]: FAIL (Chrome: PASS, Safari: FAIL)

CI Results

Gecko CI (Treeherder)
GitHub PR Head

Notes

These updates will be on mozilla-central once bug 1872652 lands.

Note: this bug is for tracking fixing the issues and is not
owned by the wpt sync bot.

This bug is linked to the relevant tests by an annotation in
https://github.com/web-platform-tests/wpt-metadata. These annotations
can be edited using the wpt interop dashboard
https://jgraham.github.io/wptdash/

If this bug is split into multiple bugs, please also update the
annotations, otherwise we are unable to track which wpt issues are
already triaged. Resolving as duplicate or closing this issue should
be cause the bot to automatically update or remove the annotation.

Comment 1

[Daniel Holbert [:dholbert]]

Relevant snippet of test:

  div {
    background:red;
    height:100px;
    width:100px;
  }
  /* This matches in user agents supporting ::-webkit-slider-thumb. */
  @supports selector(input::-webkit-slider-thumb) {
    div { background-color:green; }
  }

We don't support ::-webkit-slider-thumb so we don't get a green background, so we fail the test.

This is kind-of INVALID since it's depending on a nonstandard feature, but I guess the test is acknowledging that with .tentative in the name. So: let's just classify as S4.

Comment 2

[Daniel Holbert [:dholbert]]

(It looks like our equivalent is ::-moz-range-thumb, though I'm not sure whether it would make sense to add that to the test here.)

Comment 3

[Thomas Wisniewski [:twisniewski]]

Safari and Chrome both now pass.