title: downloading a base64 image using javascript not working on IE
body: <p>I have a canvas with ID <code>image-download</code>, i am converting the canvas to a base64 image/png for download like this:</p>
  
  <pre><code>var canvas = document.getElementById("image-download");
  var img = canvas.toDataURL("image/png");
  this.href = img;
  this.download = name + '_qr.png';
  </code></pre>
  
  <p>This works on Firefox and chrome, it opens a <code>save as</code> window which you use to download an image.</p>
  
  <p>But when i try it on IE9, it does not work. Any solutions are greatly appreciated!</p>
  
  <p>Thanks!</p>