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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Online/Offline with BFCache</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
/*
* The test is designed to work with and without bfcache.
* (1) First the test opens a window which then loads another page which
* goes back to the original page to detect if bfcache is enabled. If
* bfcache isn't enabled, close message is sent to the opened window and it
* closes itself and sends a message back and the test finishes.
* (2) The browser is set to offline mode. The opened page sends message
* that it has received offline event. This controller page then asks the
* page to go forward. The page which comes out from the bfcache gets
* offline event and sends message about that to this controller.
* (3) Browser is set to online mode. Similar cycle as with offline happens.
* (4) Controller page sends close message to the opened window and it
* closes itself and sends a message back and the test finishes.
*/
function offlineOnline(online) {
function offlineFn() {
/* eslint-env mozilla/chrome-script */
Services.io.offline = true;
}
function onlineFn() {
/* eslint-env mozilla/chrome-script */
Services.io.offline = false;
}
SpecialPowers.loadChromeScript(online ? onlineFn : offlineFn);
}
var bc = new BroadcastChannel("online_offline_bfcache");
var pageshowCount = 0;
var offlineCount = 0;
var onlineCount = 0;
bc.onmessage = function(event) {
if (event.data.event == "pageshow") {
++pageshowCount;
info("pageshow " + pageshowCount);
if (pageshowCount == 1) {
ok(!event.data.persisted);
bc.postMessage("nextpage");
} else if (pageshowCount == 2) {
ok(!event.data.persisted);
bc.postMessage("back");
} else if (pageshowCount == 3) {
if (!event.data.persisted) {
info("BFCache is not enabled, return early");
bc.postMessage("close");
} else {
offlineOnline(false);
}
}
} else if (event.data == "offline") {
++offlineCount;
info("offline " + offlineCount);
if (offlineCount == 1) {
bc.postMessage("forward");
} else if (offlineCount == 2) {
offlineOnline(true);
} else {
ok(false, "unexpected offline event");
}
} else if (event.data == "online") {
++onlineCount;
info("online " + onlineCount);
if (onlineCount == 1) {
bc.postMessage("back");
} else if (onlineCount == 2) {
bc.postMessage("close");
} else {
ok(false, "unexpected online event");
}
} else if ("closed") {
ok(true, "Did pass the test");
bc.close();
SimpleTest.finish();
}
};
function runTest() {
SpecialPowers.pushPrefEnv({"set": [["network.manage-offline-status", false]]}, function() {
window.open("file_online_offline_bfcache.html", "", "noopener");
});
}
SimpleTest.waitForExplicitFinish();
</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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