<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ZWJ rendering</title>
<style>
.complex { text-rendering: optimizeLegibility; }
</style>
</head>
<body>
<h1>ZWJ rendering</h1>
<div>‍Foo‍bar‍</div>
<div class="complex">‍Foo‍bar‍</div>
<div>Foobar</div>
<p>
The three lines above should be identical, ZWJ glyphs
should not render.
</p>
</body>
</html>