Webpack 4 chunk configuration.

config/webpack.common.js

@@ -100,6 +100,12 @@ module.exports = {
     }]
   },
 
+  optimization: {
+    splitChunks: {
+      name: true
+    }
+  },
+
   plugins: [
     // Workaround for angular/angular#11580
     new webpack.ContextReplacementPlugin(
@@ -109,10 +115,6 @@ module.exports = {
       {} // a map of your routes
     ),
 
-    new webpack.optimize.CommonsChunkPlugin({
-      name: ['app', 'vendor', 'polyfills']
-    }),
-
     new HtmlWebpackPlugin({
       template: 'src/index.ejs'
     })