tree 403fd05378900a503df378c3e693008461ca0df1
parent 3800ddfc4ee66376c40031e2bd0d96254c1c0ca6
author Aaron Krajeski <aaronhk@chromium.org> 1660258144 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1660258836 -0700

Fix canvas createpattern for null and broken images.

According to the WHATWG spec, we should be returning null (and not throwing an error) when calling createPattern on images with bad usability.

https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createpattern

This allows these tests to pass.

Also, "broken.png" was not actually a broken image and these tests should be throwing errors:

If image's current request's state is broken, then throw an "InvalidStateError" DOMException. There was some confusion in the tests, being undecodable and broken are two different states:
https://html.spec.whatwg.org/multipage/canvas.html#check-the-usability-of-the-image-argument

See https://github.com/whatwg/html/issues/8149 for discussion on this topic.

Bug: 1230183, 1055111
Change-Id: I44d7bc52992f12bbe8e045b5866b4f24058da6e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3708127
Reviewed-by: Juanmi Huertas <juanmihd@chromium.org>
Commit-Queue: Aaron Krajeski <aaronhk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1034214}