webpack 打包报 ERROR in static/js/vendor.2eff2b5a1d36f4b7f033.js from UglifyJs

老版本的webpack打包报ERROR in static/js/vendor.2eff2b5a1d36f4b7f033.js from UglifyJs

原因是因为 UglifyJs需要识别es5

根据报错内容为：./node_modules/asn1.js/lib/asn1/base/node.js:

在webpack.base.conf上添加如图