mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-23 02:05:42 +00:00
85611a7b6d
--HG-- extra : rebase_source : a22344ee1569f58f1f0a01017bfe0d46a6a14602
43 lines
962 B
HTML
43 lines
962 B
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>Overriding postMessage and dispatchEvent bindings</title>
|
|
<script type="application/javascript">
|
|
window.postMessage = function (evt)
|
|
{
|
|
window.parent.postMessage("FAIL overridden postMessage called", "*");
|
|
};
|
|
|
|
var count = 0;
|
|
|
|
function receiveMessage(evt)
|
|
{
|
|
count++;
|
|
if (count == 1)
|
|
{
|
|
window.dispatchEvent = function(evt)
|
|
{
|
|
window.parent.postMessage("FAIL", "*");
|
|
throw "dispatchEvent threw";
|
|
};
|
|
}
|
|
|
|
window.parent.postMessage(evt.data, "http://mochi.test:8888");
|
|
}
|
|
|
|
function setup()
|
|
{
|
|
var target = document.getElementById("location");
|
|
target.textContent = location.hostname + ":" + (location.port || 80);
|
|
}
|
|
|
|
window.addEventListener("message", receiveMessage);
|
|
|
|
window.addEventListener("load", setup);
|
|
</script>
|
|
</head>
|
|
<body>
|
|
<h1 id="location">No location!</h1>
|
|
</body>
|
|
</html>
|