title: GET http://localhost:3000/ 404 (Not Found)
body: <p>I'm trying to start react-js app with node server.
  Structure of directory:
  MyTodo</p>
  
  <p>---bin/</p>
  
  <p>------css/</p>
  
  <p>------fonts/</p>
  
  <p>------js/</p>
  
  <p>------index.html</p>
  
  <p>---sources/</p>
  
  <p>------App.jsx</p>
  
  <p>------TodoGroup/</p>
  
  <p>file server.js:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code> var express=require('express');
  var app=express();
  
  app.set('port',(process.env.PORT||3000));
  
  app.use('/',express.static(__dirname));
  
  app.listen(app.get('port'), function() {
   console.log('Server started: http://localhost:'+app.get('port')+'/');
  });</code></pre>
  </div>
  </div>
  </p>
  
  <p>webpack.config:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>var path = require('path');
  var webpack = require('webpack');
  var ExtractTextPlugin = require("extract-text-webpack-plugin");
  
  var config = module.exports = {
      context: __dirname,
      entry: {
          'App': './sources/App.jsx',
      },
  
      output: {
          path: './bin/js',
          filename: '[name].js'
      },
  
      plugins: [
          new ExtractTextPlugin('../css/[name].css')
      ],
  
   devServer: {
          contentBase: ".",
          host: "localhost",
          port: 3000
      },
   
     module:{
          loaders:[   //загрузчики
              {
                  test: /\.jsx?$/, // определяем тип файлов
                  exclude: /(node_modules)/,
                  loader: "babel-loader",
                  query:{
                      presets:["es2015", "react"]
                  }
              }
          ]
      }
  
      resolve: {
          extensions: ['', '.js', '.jsx']
      }
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p>In browser <a href="http://localhost:3000/" rel="nofollow noreferrer">http://localhost:3000/</a> shows an error:
  GET <a href="http://localhost:3000/" rel="nofollow noreferrer">http://localhost:3000/</a> 404 (Not Found)</p>