src/polyfill.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
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import '@babel/polyfill';
import 'url-polyfill';
import setprototypeof from 'setprototypeof';

// React depends on set/map/requestAnimationFrame
// https://reactjs.org/docs/javascript-environment-requirements.html
// import 'core-js/es6/set';
// import 'core-js/es6/map';
// import 'raf/polyfill'; 只兼容到IE10不需要，况且fetch的polyfill whatwg-fetch也只兼容到IE10

// https://github.com/umijs/umi/issues/413
Object.setPrototypeOf = setprototypeof;