<!DOCTYPE HTML>
<html>
<head>
<title>Test to ensure whitespace characters are replaced with the space character</title>
</head>
<body>
<canvas id="c" width="128" height="64" style="direction:ltr"></canvas>
<script type="text/javascript">
  var canvas = document.getElementById('c');
  var ctx = canvas.getContext('2d');

  var str = 'a b c d e f';
  ctx.fillStyle = 'black';
  ctx.font = '20px sans-serif';
  ctx.fillText(str, 0, 32);

</script>
</body>
</html>