title: Webpack-dev-server with bypass proxy
body: <p>How to achieve a 'proxy' (similar to <a href="https://github.com/drewzboto/grunt-connect-proxy" rel="noreferrer">grunt-connect-proxy</a>) option with webpack-dev-server ? </p>
  
  <p>I am using <a href="http://webpack.github.io/" rel="noreferrer">webpack</a> and <a href="http://webpack.github.io/docs/webpack-dev-server.html" rel="noreferrer">webpack-dev-server</a> with Grunt. A task in Gruntfile.js (below code) is able to start the server on port 8080. I want to add proxy setup for all the backend data requests (context URL /ajax/*). </p>
  
  <pre><code>       "webpack-dev-server": {
          options: {
              webpack: webpackConfig,
              publicPath: "/src/assets"
          },
          start: {
              keepAlive: true,
              watch: true              
          }
      } 
  </code></pre>