CONSOLE MESSAGE: failedElementError Test for DOMNode.customElementState. Uncaught exception in test page: failedElementError [customElementState.html:91] == Running test suite: DOMNode.customElementState -- Running test case: CustomElementState.Builtin PASS: #builtin should be CustomElementState.Builtin. -- Running test case: CustomElementState.Custom.Constructed PASS: constructed-element should be CustomElementState.Custom. -- Running test case: CustomElementState.Custom.Upgraded PASS: upgraded-element should be CustomElementState.Custom. -- Running test case: CustomElementState.Waiting PASS: undefined-element should be CustomElementState.Waiting. -- Running test case: CustomElementState.Failed PASS: failed-element should be CustomElementState.Failed.