Middleware Problem

server.js

var path = require('path');
var express = require('express');
var webpack = require('webpack');
var config = require('./webpack.config');

var app = express();
var compiler = webpack(config);
var port = process.env.PORT || 3000;

app.use(require('webpack-dev-middleware')(compiler, {
  noInfo: true,
  publicPath: config.output.publicPath
}));

app.use(require('webpack-hot-middleware')(compiler));

app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname, 'index.html'));
});

app.listen(port, 'localhost', err => {
  if (err) {
    console.log(err);
    return;
  }

  console.log(`Listening at http://localhost:${port}`);
});

webpack.config.js

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

const DashboardPlugin = require('webpack-dashboard/plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

const nodeEnv = process.env.NODE_ENV || 'development';
const isProduction = nodeEnv === 'production';

const jsSourcePath = path.join(__dirname, './src');
const buildPath = path.join(__dirname, './build');
const imgPath = path.join(__dirname, './static');
const sourcePath = path.join(__dirname, './src');

// Common plugins
const plugins = [
  new webpack.optimize.CommonsChunkPlugin({
    names: 'vendor',
    filename: 'vendor-[hash].js',
    minChunks: function minChunks(module, count) {
      return module.resource && module.resource.indexOf('node_modules') !== -1;
    }
  }),
  new webpack.DefinePlugin({
    'process.env': {
      NODE_ENV: JSON.stringify(nodeEnv),
    },
  }),
  new webpack.NamedModulesPlugin(),
  new HtmlWebpackPlugin({
    template: path.join(__dirname, 'index.html'),
    path: buildPath,
    filename: 'index.html',
  }),
  new webpack.LoaderOptionsPlugin({
    options: {
      // tslint: {
      //   emitErrors: true,
      //   failOnHint: true
      // },
      context: sourcePath,
    },
  }),
  new webpack.ContextReplacementPlugin(/moment[\/\\]locale$/, /en/),
  new webpack.optimize.MinChunkSizePlugin({
    minChunkSize: 1024
  })
];

// Common rules
const rules = [
  // {
  //   enforce: 'pre',
  //   test: /\.tsx?$/,
  //   loader: 'tslint',
  //   exclude: /(node_modules)/,
  // },
  { 
    enforce: 'pre',
    test: /\.js$/, 
    loader: "source-map-loader" 
  },
  {
    test: /\.(ts|tsx)$/,
    exclude: /node_modules/,
    loader: [
      'awesome-typescript-loader',
    ],
  },
  {
    test: /\.(png|gif|jpg|svg)$/,
    include: imgPath,
    use: 'url-loader?limit=20480&name=assets/[name]-[hash].[ext]',
  },
];

if (isProduction) {
  // Production plugins
  plugins.push(
    new webpack.LoaderOptionsPlugin({
      minimize: true,
      debug: false,
    }),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        warnings: false,
        screw_ie8: true,
        conditionals: true,
        unused: true,
        comparisons: true,
        sequences: true,
        dead_code: true,
        evaluate: true,
        if_return: true,
        join_vars: true,
      },
      output: {
        comments: false,
      },
    }),
    new ExtractTextPlugin('style-[hash].css')
  );
} else {
  // Development plugins
  plugins.push(
    new webpack.HotModuleReplacementPlugin(),
    new DashboardPlugin()
  );
}

module.exports = {
  devtool: isProduction ? 'eval' : 'source-map',
  // context: jsSourcePath,
  entry: {
    js: [
      'react-hot-loader/patch',
      'webpack-dev-server/client?http://0.0.0.0:3000', // WebpackDevServer host and port
      'webpack/hot/only-dev-server', // "only" prevents reload on syntax errors
      path.join(jsSourcePath, 'index.tsx'),
    ]
  },
  output: {
    path: buildPath,
    publicPath: '/',
    filename: 'app-[hash].js',
  },
  module: {
    rules,
  },
  resolve: {
    extensions: ['.js', '.jsx', '.ts', '.tsx'],
    alias: {
      'react': 'react-lite',
      'react-dom': 'react-lite'
    }
  },
  plugins,
  devServer: {
    contentBase: isProduction ? './build' : './src',
    historyApiFallback: true,
    port: 3000,
    compress: isProduction,
    inline: !isProduction,
    hot: !isProduction,
    host: '0.0.0.0',
    stats: {
      assets: true,
      children: false,
      chunks: false,
      hash: false,
      modules: false,
      publicPath: false,
      timings: true,
      version: false,
      warnings: true,
      colors: {
        green: '\u001b[32m',
      },
    },
  },
};