Harness status: OK

Found 9 tests

9 Pass
Pass	Node.prototype.cloneNode(false) must be able to clone a custom element
Pass	Node.prototype.cloneNode(false) must be able to clone as a autonomous custom element when it contains is attribute
Pass	Node.prototype.cloneNode(false) must be able to clone a custom element inside an iframe
Pass	Node.prototype.cloneNode(true) must be able to clone a descendent custom element
Pass	Node.prototype.cloneNode(true) must set parentNode, previousSibling, and nextSibling before upgrading custom elements
Pass	HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed due to a custom element constructor constructing itself after super() call
Pass	HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed due to a custom element constructor constructing itself before super() call
Pass	Upgrading a custom element must throw TypeError when the custom element's constructor returns another element
Pass	Inserting an element must not try to upgrade a custom element when it had already failed to upgrade once