<!DOCTYPE html> | |
<script> | |
'use strict' | |
// Sends true to its creator iff storageFoundation is not null. | |
function post_message(data) { | |
if (window.parent !== null) { | |
window.parent.postMessage(data, { targetOrigin: '*' }); | |
} | |
if (window.opener !== null) { | |
window.opener.postMessage(data, { targetOrigin: '*' }); | |
} | |
} | |
const is_interface_defined = (storageFoundation !== null); | |
post_message(is_interface_defined); | |
</script> |