title: VueJs with Vuetify not working in IE 11
body: <p>My app is working in in all browsers except IE 11. In IE I get <code>Error: Object doesn't support property or method 'assign'</code>. I have added the babel polyfill, but I still get the same error, like the polyfill isn't compiling correctly.</p>
  
  <p>I installed babel-polyfill <code>npm install --save babel-polyfill</code>.</p>
  
  <p>I changed webpack.base.conf.js as below</p>
  
  <pre><code>module.exports = {
    context: path.resolve(__dirname, '../'),
    entry: {
      babelPolyfill: 'babel-polyfill',
      app: './src/main.js'
    },
  </code></pre>
  
  <p>The project was started with Vuetify's webpack boilerplate.</p>