Add babel-polyfill.

Author: jaywcjlove

package.json

@@ -33,6 +33,7 @@
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
+    "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.24.1",
     "classnames": "^2.2.5",

src/web/index.js

@@ -1,5 +1,6 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
+import 'babel-polyfill';
 import RouterRoot from './Router';
 
 ReactDOM.render(