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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test back/forward after pushState</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("Need to wait to make sure an event does not fire");
async function runTest() {
let win = window.open();
let goneBackAndForwardOnce = new Promise((resolve) => {
let timeoutID;
// We should only get one load event in win.
let bc = new BroadcastChannel("bug1729662");
bc.addEventListener("message", () => {
bc.addEventListener("message", () => {
clearTimeout(timeoutID);
resolve(false);
});
}, { once: true });
let goneBack = false, goneForward = false;
win.addEventListener("popstate", ({ state }) => {
// We should only go back and forward once, if we get another
// popstate after that then we should fall through to the
// failure case below.
if (!(goneBack && goneForward)) {
// Check if this is the popstate for the forward (the one for
// back will have state == undefined).
if (state == 1) {
ok(goneBack, "We should have gone back before going forward");
goneForward = true;
// Wait a bit to make sure there are no more popstate events.
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
timeoutID = setTimeout(resolve, 1000, true);
return;
}
// Check if we've gone back once before, if we get another
// popstate after that then we should fall through to the
// failure case below.
if (!goneBack) {
goneBack = true;
return;
}
}
clearTimeout(timeoutID);
resolve(false);
});
});
win.location = "file_bug1729662.html";
ok(await goneBackAndForwardOnce, "Stopped navigating history");
win.close();
SimpleTest.finish();
}
</script>
</head>
<body onload="runTest();">
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
</body>
</html>
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