webpack.config.js

var HtmlWebpackPlugin = require('html-webpack-plugin')
var HTMLWebpackPluginConfig = new HtmlWebpackPlugin({
  template: __dirname + '/app/index.html',
  filename: 'index.html',
  inject: 'body'
})

module.exports = {
  entry: [
    './app/index.js'
  ],
  output: {
    path: __dirname + '/dist',
    filename: "index_bundle.js"
  },
  module: {
    loaders: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel',
        query: {
          presets: ['es2015', 'stage-1', 'react'],
          plugins: ['transform-decorators-legacy']
        }
      },
      {test: /\.js$/, exclude: /node_modules/, loader: "babel-loader"},
      {test: /\.(jpe?g|png|gif|svg)$/i,
       loaders: ['file?hash=sha512&digest=hex&name=[hash].[ext]',
                 'image-webpack?bypassOnDebug&optimizationLevel=7&interlaced=false']
      }
    ]
  },
  plugins: [HTMLWebpackPluginConfig]
}