@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js

Web Components Polyfills

(function () {
'use strict';

(()=>{if(!window.customElements)return;const a=window.HTMLElement,b=window.customElements.define,c=window.customElements.get,d=new Map,e=new Map;let f=!1,g=!1;window.HTMLElement=function(){if(!f){const a=d.get(this.constructor),b=c.call(window.customElements,a);g=!0;const e=new b;return e}f=!1;}, window.HTMLElement.prototype=a.prototype;Object.defineProperty(window,'customElements',{value:window.customElements,configurable:!0,writable:!0}), Object.defineProperty(window.customElements,'define',{value:(c,h)=>{const i=h.prototype,j=class extends a{constructor(){super(), Object.setPrototypeOf(this,i), g||(f=!0, h.call(this)), g=!1;}},k=j.prototype;j.observedAttributes=h.observedAttributes, k.connectedCallback=i.connectedCallback, k.disconnectedCallback=i.disconnectedCallback, k.attributeChangedCallback=i.attributeChangedCallback, k.adoptedCallback=i.adoptedCallback, d.set(h,c), e.set(c,h), b.call(window.customElements,c,j);},configurable:!0,writable:!0}), Object.defineProperty(window.customElements,'get',{value:a=>e.get(a),configurable:!0,writable:!0});})();

/**
@license
Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/

}());