1776487 - New wpt failures in /css/css-contain/container-queries/at-container-style-serialization.html

Status: NEW

(Core :: Layout, defect)

Description

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

Syncing wpt PR 34574 found new untriaged test failures in CI

Tests Affected

Firefox-only failures

• /css/css-contain/container-queries/at-container-style-serialization.html [wpt.fyi]: ERROR

CI Results

Missing results from treeherder
GitHub PR Head

Notes

These updates will be on mozilla-central once bug 1776391 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]]

Looks like the test is failing because @container style(...) is getting rejected at parse-time, or something along those lines.

At least -- it looks like (with the pref enabled) we're failing on the last line of the test's setup code, here:

<script>
  setup(() => {
    assert_implements_container_queries();
    assert_equals(testSheet.sheet.cssRules.length, 6);
  });

In Firefox with layout.css.container-queries.enabled = true, testSheet.sheet.cssRules.length is 0 at this point.

Maybe we just don't support @container style() type queries right now?

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: reduced testcase 1

Comment 3

[Daniel Holbert [:dholbert]]

(In reply to Daniel Holbert [:dholbert] from comment #1)

Maybe we just don't support @container style() type queries right now?

(This is bug 1795622, for what it's worth.)