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Test Info:
- Manifest: docshell/test/mochitest/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=646641">Mozilla Bug 646641</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/**
* Steps:
* - Main page (this one) opens file_bfcache_plus_hash_1.html (subpage 1)
* - subpage 1 sends msg { "childLoad", 1 }
* - subpage 1 sends msg { "childPageshow", 1 }
* - main page sends message "pushState"
* - subpage 1 does pushState()
* - subpage 1 navigates to file_bfcache_plus_hash_2.html (subpage 2)
* - subpage 2 sends msg { "childLoad", 2 }
* - subpage 2 sends msg { "childPageshow", 2 }
* - main page sends msg "go-2"
* - subpage 2 goes back two history entries
* - subpage 1 sends msg { "childPageshow", 1 }
* - Receiving only this msg shows we have retrieved the document from bfcache
* - main page sends msg "close"
* - subpage 1 sends msg "closed"
*/
SimpleTest.waitForExplicitFinish();
function debug(msg) {
// Wrap dump so we can turn debug messages on and off easily.
dump(msg + "\n");
}
var expectedLoadNum = -1;
var expectedPageshowNum = -1;
function waitForLoad(n) {
debug("Waiting for load " + n);
expectedLoadNum = n;
}
function waitForShow(n) {
debug("Waiting for show " + n);
expectedPageshowNum = n;
}
function executeTest() {
function* test() {
window.open("file_bfcache_plus_hash_1.html", "", "noopener");
waitForLoad(1);
waitForShow(1);
yield undefined;
yield undefined;
bc1.postMessage("pushState");
waitForLoad(2);
waitForShow(2);
yield undefined;
yield undefined;
// Now go back 2. The first page should be retrieved from bfcache.
bc2.postMessage("go-2");
waitForShow(1);
yield undefined;
bc1.postMessage("close");
}
var bc1 = new BroadcastChannel("bug646641_1");
var bc2 = new BroadcastChannel("bug646641_2");
bc1.onmessage = (msgEvent) => {
var msg = msgEvent.data.message;
var n = msgEvent.data.num;
if (msg == "childLoad") {
if (n == expectedLoadNum) {
debug("Got load " + n);
expectedLoadNum = -1;
// Spin the event loop before calling gGen.next() so the generator runs
// outside the onload handler. This prevents us from encountering all
// sorts of docshell quirks.
setTimeout(function() { gGen.next(); }, 0);
} else {
debug("Got unexpected load " + n);
ok(false, "Got unexpected load " + n);
}
} else if (msg == "childPageshow") {
if (n == expectedPageshowNum) {
debug("Got expected pageshow " + n);
expectedPageshowNum = -1;
ok(true, "Got expected pageshow " + n);
setTimeout(function() { gGen.next(); }, 0);
} else {
debug("Got unexpected pageshow " + n);
ok(false, "Got unexpected pageshow " + n);
}
} else if (msg == "closed") {
bc1.close();
bc2.close();
SimpleTest.finish();
}
}
bc2.onmessage = bc1.onmessage;
var gGen = test();
// If Fission is disabled, the pref is no-op.
SpecialPowers.pushPrefEnv({set: [["fission.bfcacheInParent", true]]}, () => {
gGen.next();
});
}
if (isXOrigin) {
// Acquire storage access permission here so that the BroadcastChannel used to
// communicate with the opened windows works in xorigin tests. Otherwise,
// the iframe containing this page is isolated from first-party storage access,
// which isolates BroadcastChannel communication.
SpecialPowers.wrap(document).notifyUserGestureActivation();
SpecialPowers.addPermission("storageAccessAPI", true, window.location.href).then(() => {
SpecialPowers.wrap(document).requestStorageAccess().then(() => {
SpecialPowers.pushPrefEnv({
set: [["privacy.partition.always_partition_third_party_non_cookie_storage", false]],
}).then(() => {
executeTest();
});
});
});
} else {
executeTest();
}
</script>
</pre>
</body>
</html>