title: Webpack lazy loading import IE 11 Promise undefined
body: <p>I am using Webpack 2 with <code>import()</code> but in IE 11 I got error</p>
  
  <blockquote>
    <p>Dynamic page loading failed ReferenceError: 'Promise' is undefined</p>
  </blockquote>
  
  <p>though I am using bluebird to polyfill <code>Promises</code> in client of my React application with <code>babel-preset-bluebird</code></p>
  
  <pre><code>{
      test: /\.jsx?$/,
      exclude: [/node_modules/, /
      use: {
      loader: "babel-loader",
          query: {
              presets: [['es2015', { modules: false }], 'react', 'stage-2', 'stage-3', 'bluebird'],
              plugins: ['transform-runtime', 'lodash']
          }
      }
  }
  </code></pre>
  
  <p>how can I fix lazy loading with <code>import()</code> in IE 11?</p>
  
  <p>Thanks in advance!</p>