/* 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/multipage/#customelementregistry [Pref="dom.customelements.enabled"] interface CustomElementRegistry { [Throws, CEReactions] void define(DOMString name, CustomElementConstructor constructor_, optional ElementDefinitionOptions options); any get(DOMString name); Promise whenDefined(DOMString name); }; callback CustomElementConstructor = any(); dictionary ElementDefinitionOptions { DOMString extends; };