Auto merge of #25575 - pshaughn:celoop, r=jdm

Prevent infinite recursion when upgrading custom elements

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The spec and tests were out of sync when I implemented #25410 and I mentioned I'd have an extra detail to attend to if whatwg/html#5126 landed; it did, and I did, and a couple test cases pass.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix two WPT test cases, see test metadata in commit

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- [X] There are tests for these changes

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bors-servo 2020-01-26 06:07:08 -05:00 committed by GitHub
commit e3a9063412
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3 changed files with 14 additions and 19 deletions

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@ -4,10 +4,3 @@
[If definition's disable shadow is true and element's shadow root is non-null, then throw a "NotSupportedError" DOMException.]
expected: FAIL
[Infinite constructor recursion with upgrade(this) should not be possible]
expected: FAIL
[Infinite constructor recursion with appendChild should not be possible]
expected: FAIL