| This tests re-parenting a child of the document fragment during an insertion so as to create a circular node tree. |
| WebKit should detect this case and throw HierarchyRequestError. |
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| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". |
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| PASS container.insertBefore(fragment, refChild) threw exception HierarchyRequestError: The operation would yield an incorrect node tree.. |
| PASS container.parentNode is childShadowRoot |
| PASS child.parentNode is null |
| PASS successfullyParsed is true |
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| TEST COMPLETE |
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