npm install --save babel-polyfill
在main.js中添加:vue
import es6Promise from "babel-polyfill";
es6Promise .polyfill();
在webpack.base.conf.js中修改webpack
module.exports = { entry: ["babel-polyfill", "./app/js"] };
可是仍是發現報錯:git
polyfill-eventsource added missing EventSource to windowes6
這時候再下載event-source-polyfill模塊github
npm install event-source-polyfill --save-dev
並將webpack.base.conf.js修改成:web
module.exports = { entry: ["event-source-polyfill", "babel-polyfill", "./app/js"] };
https://babeljs.io/docs/usage/polyfill/npm
https://github.com/vuejs-templates/webpack/issues/474babel