webpack.config.js

require('webpack')
const path = require('path')
const ExtractTextPlugin = require('extract-text-webpack-plugin')

module.exports = {
  entry: './src/index.jsx',
  output: {
    path: path.join(__dirname, '/public'),
    filename: './bundle.js'
  },
  devServer: {
    port: 8080,
    contentBase: './public'
  },
  resolve: {
    extensions: ['*', '.js', '.jsx']
  },
  plugins: [
    new ExtractTextPlugin('app.css')
  ],
  externals: {
    cheerio: 'window',
    'react/addons': 'react',
    'react/lib/ExecutionEnvironment': 'react',
    'react/lib/ReactContext': 'react',
  },
  module: {
    loaders: [{
      test: /.jsx?$/,
      loader: 'babel-loader',
      exclude: /node_modules/,
      query: {
        presets: ['es2015', 'react', 'stage-0']
      }
    },
    {
      test: /\.css$/,
      loader: ExtractTextPlugin.extract({ fallback: 'style-loader', use: 'css-loader' })
    }]
  }
}