It breaks sites trying to detect shadow dom v0 support.
Comment on attachment 8967521 [details] [diff] [review] 0001-Bug-1453789-Remove-Element.createShadowRoot.-r-smaug.patch I assume there will be another patch to fix tests.
Attachment #8967521 - Flags: review?(bugs) → review+
(To be squashed on the following commit)
Attachment #8967594 - Flags: review?(bugs)
Comment on attachment 8967594 [details] [diff] [review] Fix tests Hmm, looks like we have still test_shadow_element.html but never run it. I guess that file should be removed. But there are quite a few more tests based on searchfox.
Attachment #8967594 - Flags: review?(bugs) → review-
Comment on attachment 8967707 [details] [diff] [review] With tests fixed. thanks!
Attachment #8967707 - Flags: review?(bugs) → review+
Pushed by firstname.lastname@example.org: https://hg.mozilla.org/integration/autoland/rev/b2dd9ca61e0b Remove Element.createShadowRoot. r=smaug
Created web-platform-tests PR https://github.com/w3c/web-platform-tests/pull/10466 for changes under testing/web-platform/tests
Upstream PR merged
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