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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1364364
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1364364</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 1364364 */
let testWin, testDoc;
async function test() {
SimpleTest.waitForExplicitFinish();
if (SpecialPowers.Services.appinfo.sessionHistoryInParent) {
// This test relies on the possibility to modify the bfcached document.
// The new implementation is more restricted and thus works only
// when the bfcached browsing context is the only top level one
// in the browsing context group.
ok(true, "This test is for the old bfcache implementation only.");
SimpleTest.finish();
return;
}
testWin = window.open("file_bug1364364-1.html");
await waitForLoad(testWin);
testDoc = testWin.document;
// file_bug1364364-1.html will load a few dynamic iframes and then navigate
// top browsing context to file_bug1364364-2.html, which will postMessage
// back.
}
function waitForLoad(win) {
return new Promise(r => win.addEventListener("load", r, { once: true}));
}
window.addEventListener("message", async function(msg) {
if (msg.data == "navigation-done") {
is(testWin.history.length, 6, "check history.length");
// Modify a document in bfcache should cause the cache being dropped tho
// RemoveFromBFCacheAsync.
testDoc.querySelector("#content").textContent = "modified";
await new Promise(r => setTimeout(r, 0));
is(testWin.history.length, 2, "check history.length after bfcache dropped");
testWin.close();
SimpleTest.finish();
}
});
</script>
</head>
<body onload="test();">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1364364">Mozilla Bug 1364364</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>
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