gecko-dev/dom/messagechannel/tests/iframe_messageChannel_trans...

27 строки
568 B
HTML

<!DOCTYPE HTML>
<html>
<body>
<script type="application/javascript">
function ok(what, msg) {
window.parent.postMessage({type: what ? 'OK' : 'KO', msg: msg }, '*');
}
window.addEventListener('message', receiveMessage);
function receiveMessage(evt) {
ok(evt.ports.length == 1, "Port transferred!");
var a = new MessageChannel();
ok(a, "MessageChannel created");
evt.ports[0].postMessage('hello world!', [a.port2]);
a.port1.onmessage = function(evt) {
evt.target.postMessage(evt.data);
}
}
</script>
</body>
</html>