/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ // https://html.spec.whatwg.org/#dom-window-customelements [Func="CustomElementRegistry::IsCustomElementEnabled"] interface CustomElementRegistry { [Throws] void define(DOMString name, Function functionConstructor, optional ElementDefinitionOptions options); any get(DOMString name); [Throws] Promise<void> whenDefined(DOMString name); }; dictionary ElementDefinitionOptions { DOMString extends; };