寻找更多Webpack生产捆绑优化

Question

我正在尝试减少应用程序JS包的输出大小，并且查看这些是我到目前为止帮助我完成此任务的插件：

config.plugins = [
 new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('production')
      }
    }),
  new webpack.ContextReplacementPlugin(/moment[\/\\]locale$/, /en-gb/),
  new ExtractTextPlugin({ filename: "bundle.css" }),
  new webpack.LoaderOptionsPlugin({
    minimize: true,
    debug: false
  }),
  new webpack.optimize.UglifyJsPlugin({
    compress: {
      warnings: false,
      pure_getters: true,
      unsafe: true,
      unsafe_comps: true,
      screw_ie8: true,
    },
    output: {
      comments: false,
      screw_ie8: true,
    },
    mangle: {
      screw_ie8: true,
    },
    sourceMap: false,
    minimize: true
  }),
  new LodashModuleReplacementPlugin({ 'collections': true }),
  new DuplicatePackageCheckerPlugin()
];

我还将devtool设置为undefined for production。

这是我的.babelrc，我也在做一些优化：

{
  "presets": [
    ["es2015", { "es2015": { "loose": true, "modules": false}}],
    "react",
    "stage-0",
  ],  
  "env": {
    "development": {
      "presets": ["react"]
    },
    "production": {
      "plugins": [
        ["transform-react-remove-prop-types", {
          "mode": "wrap",
        }]
      ]
    }
  },
  "plugins": ["lodash"]
}

我还能做其他事情吗？捆绑已经减少很多但仍然很大。