Using 100% on canvas without 100% height on body
Using 100% on canvas without 100% height on body fails
HTML
<html>
<body>
<canvas id='canvas' style='width: 100%; height: 100%; background: red;'> </canvas>
</body>
</html>
<html>
<body>
<canvas id='canvas' style='width: 100%; height: 100%; background: red;'> </canvas>
</body>
</html>