1765918 - [wpt-sync] Sync PR 33747 - [renderblocking] Dynamically inserted render-blocking stylesheets should not block scripts

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, task, P4)

Description

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

Sync web-platform-tests PR 33747 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/33747
Details from upstream follow.

Xiaocheng Hu <[e-mail]> wrote:

[renderblocking] Dynamically inserted render-blocking stylesheets should not block scripts

This patch fixes a bug that adding blocking=render to script-inserted
stylesheets makes them script-blocking, which violates the spec as only
parser-inserted stylesheets can be script-blocking [1].

This patch is also a preparation patch to allow unblocking rendering on
dynamic stylesheets by removing blocking=render [2]

[1] https://html.spec.whatwg.org/#contributes-a-script-blocking-style-sheet
[2] crrev.com/c/3601726

Bug: 1271296
Change-Id: I6eee34357ab034c802b3b022719427a1b3964c19

Reviewed-on: https://chromium-review.googlesource.com/3601502
WPT-Export-Revision: 38502433dc93dd0f6c264ca1e0c99bbe8dd845ab

Comment 1

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

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=283ba77dcaf8b14b2b980f63f2ee684bd3749bc2

Comment 2

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

CI Results

Ran 0 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 2 tests and 1 subtests

Status Summary

Firefox

OK : 2
PASS: 2

Chrome

OK : 2
FAIL: 2

Safari

OK : 2
FAIL: 2

Links

GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/8e2c99ec02e0
[wpt PR 33747] - [renderblocking] Dynamically inserted render-blocking stylesheets should not block scripts, a=testonly

Comment 4

[bszekely]

https://hg.mozilla.org/mozilla-central/rev/8e2c99ec02e0