<!DOCTYPE html>
<html>
<head>
<script>

function boom()
{
  var canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
  var canvas2d = canvas.getContext('2d');
  canvas2d.rect(0, 0, 1, 1);
  canvas2d.transform(1, 0, 0, 1, 0, 0);
  canvas.setAttributeNS(null, "height", "99");
  canvas2d.rect(0, 0, 1, 1);
}

</script>
</head>
<body onload="boom();"></body>
</html>
