| PASS | Historical DOM features must be removed: MutationEvent | |
| PASS | The DOMSubtreeModified mutation event must not be fired. | |
| PASS | The DOMNodeInserted mutation event must not be fired. | |
| PASS | The DOMNodeRemoved mutation event must not be fired. | |
| PASS | The DOMNodeRemovedFromDocument mutation event must not be fired. | |
| PASS | The DOMNodeInsertedIntoDocument mutation event must not be fired. | |
| PASS | The DOMCharacterDataModified mutation event must not be fired. | |
| PASS | The DOMAttrModified mutation event must not be fired. | |
| PASS | The DOMAttributeNameChanged mutation event must not be fired. | |
| PASS | The DOMElementNameChanged mutation event must not be fired. | |