title: <input> accept Attribute in Microsoft Edge
body: <p>Anyone know how to get accept working in Edge?</p>
  
  <p><code>&lt;input type="file" accept=".csv"&gt;</code></p>
  
  <p>Works fine in Chrome 44, Firefox 39, IE 11, Opera 31. </p>
  
  <p>Also tried</p>
  
  <p><code>&lt;input type="file" accept=".csv,text/csv"&gt;</code></p>