<!
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>
