<!DOCTYPE html>
<html>
<head>
<title>
Main frame for test browser_compartments.js
</title>
</head>
<body>
Main frame.
<iframe src="browser_compartments_frame.html?frame=1">
Subframe 1
</iframe>
<iframe src="browser_compartments_frame.html?frame=2">
Subframe 2.
</iframe>
</body>
</html>