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<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="application/javascript" src="/tests/SimpleTest/SpecialPowers.js"></script>
<script type="application/javascript">
// Since BFCache in parent requires no opener, use BroadcastChannel
// to communicate with file_same_url.html.
let bc = new BroadcastChannel("test_same_url");
async function test() {
var promise;
let historyLength;
promise = waitForLoad();
window.open("file_same_url.html", "_blank", "noopener=yes");
historyLength = await promise;
is(historyLength, 1, "before same page navigation");
promise = waitForLoad();
bc.postMessage("linkClick");
historyLength = await promise;
is(historyLength, 1, "after same page navigation");
bc.postMessage("closeWin");
SimpleTest.finish();
}
async function waitForLoad() {
return new Promise(resolve => {
let listener = e => {
if (e.data.bodyOnLoad) {
bc.removeEventListener("message", listener);
setTimeout(() => resolve(e.data.bodyOnLoad), 0);
}
};
bc.addEventListener("message", listener);
});
}
</script>
</head>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1745730">Bug 1745730</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="text/javascript">
SimpleTest.waitForExplicitFinish();
</script>
</pre>
<body onload="test()">
</body>
</html>
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