webpack.web.production.config.js

var webpack = require('webpack');
var ExtractTextPlugin = require('extract-text-webpack-plugin');

/**
 * This is the Webpack configuration file for production.
 */
module.exports = {
  entry: "./src/main",

  output: {
    path: __dirname + "/build/",
    filename: "app.js"
  },

  plugins: [
    new ExtractTextPlugin({ filename: 'style.css', allChunks: true }),
    new webpack.DefinePlugin({
        'process.env': {
            'NODE_ENV': JSON.stringify('production'),
            'web': true
        }
    })
  ],

  module: {
    loaders: [
      { test: /\.jsx?$/, exclude: /node_modules/, loader: "babel-loader" },
      { test: /\.css$/, loader: ExtractTextPlugin.extract({ fallbackLoader: 'style-loader', loader: 'css-loader?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]!postcss-loader'} ) },
      { test: /\.json?$/, loaders: ["json-loader"] },
    ]
  },

  resolve: {
    extensions: ['', '.js', '.jsx', '.css'],
  },

  postcss: [
    require('autoprefixer'),
    require('postcss-nested')
  ],

  node: {
      fs: "empty",
  },

  externals: [
      {
          electron: "var x = null"
      }
  ]
}