diff --git a/.eslintignore b/.eslintignore
index 989e613fb..964b87b68 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,5 +1,6 @@
 /js/tests/*
 /js/vendor/*
+/js/legacy/*
 /js/node_modules/*
 /js/public/*
 /karma.conf.js
diff --git a/js/webpack.config.js b/js/webpack.config.js
index 72d629500..13f3cf73f 100644
--- a/js/webpack.config.js
+++ b/js/webpack.config.js
@@ -1,6 +1,6 @@
 const path = require('path');
 const webpack = require('webpack');
-const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 
 module.exports = {
   node: {
@@ -27,7 +27,7 @@ module.exports = {
         test: /\.css$/,
         use: [
           MiniCssExtractPlugin.loader,
-          "css-loader"
+          'css-loader'
         ]
       }
     ]
@@ -38,25 +38,26 @@ module.exports = {
         /* separate vendor chunk for node_modules and legacy scripts */
         commons: {
           test: /[\\/]node_modules[\\/]/,
-          name: "vendor",
-          chunks: "all"
+          name: 'vendor',
+          chunks: 'all'
         },
         legacy: {
           test: /[\\/]legacy[\\/]/,
-          name: "vendor",
-          chunks: "all"
+          name: 'vendor',
+          chunks: 'all'
         }
       }
     }
   },
+  /* use external jQuery from server */
   externals: {
-    "jquery": "jQuery"
+    'jquery': 'jQuery'
   },
   plugins: [
-    new MiniCssExtractPlugin('css/[name].css'),
+    new MiniCssExtractPlugin('[name].css'),
     new webpack.ProvidePlugin({
-      $: "jquery",
-      jQuery: "jquery"
+      $: 'jquery',
+      jQuery: 'jquery'
     })
   ]
 };