<!DOCTYPE html>
<html>
<body>
<button>Button</button>
<img src="green.png" usemap="#map">
<map name="map">
<!-- This URL ensures that the link doesn't get clicked, since
mochitests cannot access the outside network. -->
<area shape="rect" coords="0,0,10,10" href="https://youtube.com/">
</map>
<div style="height: 20000px;" tabindex="-1"><hr></div>
</body>
</html>