HTML5 Load local file on to canvas with jQuery

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Load Image</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
  <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

  <script>
    $(document).ready(function(){
      $("#uploadimage").on("change", draw);
    });

    function draw(ev) {
      console.log(ev);
      var ctx = $('#canvas')[0].getContext('2d'),
        img = new Image(),
        f = $("#uploadimage")[0].files[0],
        url = window.URL || window.webkitURL,
        src = url.createObjectURL(f);

      img.src = src;
      img.onload = function() {
        ctx.drawImage(img, 0, 0);
        url.revokeObjectURL(src);
      }
    }

  </script>
</head>
<body>

<div class="container">
  <input type='file' name='img' size='65' id='uploadimage' />
  <canvas id="canvas" width="500" height="500"></canvas>
</div>

</body>
</html>