My Webpack config

shim.js

// Used to define the asset prefix at runtime
__webpack_require__.p = window.WEBPACK_ASSET_PREFIX || "ERROR-WEBPACK_ASSET_PREFIX-NOT-SET/";

webpack.config.js

'use strict';
/**
 * Use "PROD=1 webpack" to trigger a production build.
 */

var path = require('path');
var webpack = require('webpack');

var shim = './akindi/webpack/shim.js';

var IS_DEV = !process.env.PROD;
var IS_PROD = !IS_DEV;

module.exports = {
  cache: true,
  // Note: 'eval' if faster but 'source-map' may be better quality?
  devtool: IS_DEV && 'eval',
  entry: {
    // Note: the dummy entrypoint is needed to trigger CommonsChunkPlugin to
    // de-dupe the code shared between base-script and the application.
    '_dummy_base-script': [shim, './akindi/base-script.js', './akindi/style/base-style.less'],
    'script': [shim, './akindi/index.js', './akindi/style/base-style.less'],
    'style': [shim, './akindi/style/style.less'],
    'browser-version-check': [shim, './akindi/style/browser-version-check.less', './akindi/browser-version-check.js'],
  },
  output: {
    sourcePrefix: '',
    path: path.join(__dirname, 'dist'),
    filename: '[name].js',
    chunkFilename: '[name]-[id].js',
    sourceMapFilename: IS_DEV && '[file].map',
  },
  resolve: {
    modulesDirectories: ['./bower_components', './node_modules', '.'],
    extensions: ['', '.js', '.es6'],
  },
  module: {
    preLoaders: [
      { test: /\.js$/, loader: 'eslint-loader', exclude: /(node_modules|bower_components)/ },
      { test: /\.es6$/, loader: 'eslint-loader' },
    ],
    loaders: [
      { test: /\.es6$/, loader: 'babel' },
      { test: /\.html$/, loader: 'raw' },
      { test: /\.less$/, loaders: ['style', 'css', 'less'] },
      { test: /\.css$/, loaders: ['style', 'css'] },
      { test: /\.png$/, loader: 'file' },
      { test: /\.woff$/, loader: 'file?prefix=fonts/' },
      { test: /\.ttf$/, loader: 'file?prefix=fonts/' },
      { test: /\.eot$/, loader: 'file?prefix=fonts/' },
      { test: /\.svg$/, loader: 'file?prefix=fonts/' },
      { test: /\.swf$/, loader: 'file' },
    ]
  },
  plugins: [
    new webpack.optimize.CommonsChunkPlugin('base-script.js', ['_dummy_base-script', 'script']),
    new webpack.DefinePlugin({
      AKINDI_BUILD_NUMBER: +(new Date()),
    }),
    new webpack.ResolverPlugin(
      new webpack.ResolverPlugin.DirectoryDescriptionFilePlugin('bower.json', ['main'])
    ),
  ].concat(IS_PROD? [
    new webpack.optimize.OccurenceOrderPlugin(true),
    new webpack.optimize.UglifyJsPlugin({
      mangle: false,
      compressor: {
        warnings: false,
      },
    }),
  ] : []),
};