1807207 - New wpt failures in /css/css-break/ [out-of-flow-in-multicolumn-107.html, out-of-flow-in-multicolumn-108.html]

Status: NEW

(Core :: Layout: Positioned, defect)

Description

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

Syncing wpt PR 37628 found new untriaged test failures in CI

Tests Affected

New Tests That Don't Pass

• /css/css-break/out-of-flow-in-multicolumn-107.html [wpt.fyi]: FAIL (Chrome: FAIL, Safari: PASS)
• /css/css-break/out-of-flow-in-multicolumn-108.html [wpt.fyi]
  • Overflowing and clipped content doesn't fragment: FAIL (Chrome: FAIL, Safari: PASS)

CI Results

Gecko CI (Treeherder)
GitHub PR Head

Notes

These updates will be on mozilla-central once bug 1806861 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 these tests come from https://bugs.chromium.org/p/chromium/issues/detail?id=1399313

Morten's "tc-chrome-issue.html" attachment over there does reproduce the described bad-behavior (many blank pages of output), in Firefox Nightly 110. I'll post that as a testcase here, too.

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: testcase 1 ("tc-chrome-issue.html" from https://bugs.chromium.org/p/chromium/issues/detail?id=1399313 )

Comment 3

[Daniel Holbert [:dholbert]]

print-preview shows 98 pages for testcase 1, when in fact it should only show 1 (since the tall content is inside of a clipped zero-height container)