<!doctype html> | |
<meta charset="utf-8"> | |
<title>Grandchild that posts a message to the window.top</title> | |
<script> | |
var top_location = ''; | |
var result = ''; | |
try { | |
top_location = window.top.location.href; | |
result = 'allowed'; | |
} catch (err) { | |
result = 'noaccess'; | |
} | |
window.top.postMessage(result, '*'); | |
</script> |