| Checks that Range.extractContents() throws a HierarchyRequestError when encountering a docType | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS range.extractContents() threw exception HierarchyRequestError: The operation would yield an incorrect node tree.. | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |