| Test that setAttributeNS with a null namespaceURI actually sets it to the value null and not a string with the contents 'null'. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS elem.attributes[0].namespaceURI is null | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |