<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Dummy iFrame page</title>
</head>
<body>
<h1>iFrame CSP test</h1>
<iframe id="theIframe"
        sandbox="allow-scripts"
        width=800
        height=800
        src="http://example.org:8000/browser/browser/base/content/test/about/csp_iframe.sjs">
</iframe>
</body>
</html>