公司新开发的项目需要兼容IE9+，所以添加不起作用总结方法：兼容IE9/IE10可能会遇到语法或Promise错误，安装babel-polyfillnpminstallbabel-polyfill在页面入口配置中引入babel-polyfillimport("babel-polyfill")main.js解决编译错误----重要重装webpack-dev-servernpminstallwebpack-dev-server@2.6.1如果你有淘宝镜像，也可以用cnpm修改build/webpack下的app。base.conf.js:['babel-polyfill','./src/main.js']安装babel-preset-es2015-ie并创建一个新的.babelrc{"presets":[["env",{"modules":false,"targets":{"browsers":[">1%","last2versions","notie<=8"]}}],"stage-2"],"plugins":["transform-runtime"],"env":{"test":{"presets":["env","stage-2"],"plugins":["istanbul"]}}}经过以上操作完成后，运行npmrundev
