<!DOCTYPE html>
<html>
<head>
</head>
<body>
This test makes sure that text-orientation: sideways is treated the same as text-orientation: sideways-right.
<div id="placeholder"></div>
<div style="text-orientation: upright;">
<div id="t" style="-webkit-writing-mode: vertical-rl; -webkit-text-orientation: sideways;">abcd</div>
</div>
<script>
var t = document.getElementById("t");
var receiver = document.getElementById("placeholder");
receiver.textContent = window.getComputedStyle(t).getPropertyValue("-webkit-text-orientation");
</script>
</body>
</html>