webpack.config.dev.js

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

module.exports = {
  // or devtool: 'eval' to debug issues with compiled output://-eval
  devtool: 'cheap-module-source-map',
  entry: [
    // necessary for hot reloading with IE:
    'eventsource-polyfill',
    // listen to code updates emitted by hot middleware:
    'webpack-hot-middleware/client',
    // your code:
    './src/index'
  ],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/dist/'
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin()
  ],
  module: {
    loaders: [{
          test: /\.js$/,
          loaders: ['babel'],
          include: path.join(__dirname, 'src')
      },
      {
          test: /\.css$/,
          loader: 'style!css!autoprefixer'
      },
      {
          test:/\.scss$/,
          loaders:'style!css!autoprefixer!sass'
      },
      {
          test: /\.(jpe?g|png)$/,
          loader: 'file'
      },
      {
          test: /\.(woff|woff2|ttf|svg|eot)(\?v=\d+\.\d+\.\d+)?$/,
          loader: "url?limit=10000"
      }
    ]
  }
};