title: html download attribute not supported in Internet Explorer 11
body: <p>I'm writing Angularjs.
  This is my code(That works fine in chrome):</p>
  
  <pre><code>&lt;a download="a.json" ng-click="updateExport()" ng-href="{{exportUrl}}" translate="Export"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>In explorer (IE11) - When I click on this code, the function <code>updateExport()</code> calls. but <code>ng-href</code> and download didn't started. I saw that explorer don't support <code>download</code> attribute. How can I change my code to support chrome, Firefox and Explorer at the same time? (Without jQuery).</p>