1<!DOCTYPE html>
2<html>
3<head>
4    <title>Page with access to document.cookie</title>
5</head>
6<body>
7    <script type="text/javascript">
8        cookie = document.cookie;
9        document.cookie = "name=browser";
10        parent.window.postMessage("cookies are R/W", "*");
11    </script>
12</body>
13</html>
14