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<html>
<head>
<script>
var b = new BroadcastChannel("windowclose");
function isInitialLoad() {
return location.search.substr(1) != "withhistory" || history.length == 1;
}
function run() {
if (location.search.substr(1) == "withhistory") {
// An entry for the initial load, pushState, iframe and the next page.
if (history.length == 4) {
// We're coming back from history.
function listener(m) {
if (m.message.includes("Scripts may not close windows that were not opened by script.")) {
SpecialPowers.postConsoleSentinel();
SpecialPowers.pushPrefEnv({ set: [["dom.allow_scripts_to_close_windows", true]]}).then(
function() {
window.onunload = function() {
b.postMessage('blocked');
b.close();
};
window.close();
});
}
}
SpecialPowers.registerConsoleListener(listener);
window.onunload = function() {
SpecialPowers.postConsoleSentinel();
b.postMessage('closed');
b.close();
};
window.close();
} else {
// Load a page which will call history.back()
location.href = "file_window_close_2.html";
}
} else {
onunload = function() {
b.postMessage('closed');
b.close();
};
window.close();
}
}
function init() {
if (isInitialLoad()) {
// Add some data to the session history.
history.pushState("foo", "foo");
var ifr = document.getElementsByTagName("iframe")[0];
ifr.onload = run;
ifr.src = "data:text/html,random data";
} else {
run();
}
}
window.onpageshow = () => {
setTimeout(init);
}
</script>
</head>
<body>
<iframe></iframe>
</body>
</html>
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