[React Intl] The `Intl` APIs must be available in the runtime, and do not appear to be built-in. An `Intl` polyfill should be loaded.

由于有OCX插件，头部必须加上标签 <meta http-equiv=“X-UA-Compatible” content=“IE=5; IE=10” />

polyfills: [‘ie11’]

然后就报异常了 [React Intl] The Intl APIs must be available in the runtime, and do not appear to be built-in. An Intl polyfill should be loaded. See: http://formatjs.io/guides/runtime-environments/ umi.js (56691,5)

The above error occurred in the <IntlProvider> component: in IntlProvider (created by _default) in LocaleProvider (created by _default) in _default (created by _default) in _default in Provider (created by DvaContainer) in DvaContainer Consider adding an error boundary to your tree to customize error handling behavior. Visit https://fb.me/react-error-boundaries to learn more about error boundaries.

[linqinghao]

在IE10下面没有Intl API, 需要polyfill. 我用下面的方法解决了。 第一步：

$ npm install --save intl @babel-polyfill

第二步：在src下新建 global.js

import '@babel/polyfill';

global.Intl = require('intl'); 
window.Intl = require('intl');

在IE9+上都可以跑了，不过布局都乱了。。flex布局不支持IE9以及部分支持IE10。

[chenyu1990]

用了这个方法，鸿蒙2.0的浏览器还是一直转圈圈 md，华为浏览器没有 Notification 方法。