</div>
<pre id="test">
<script type="application/javascript">
/**
* - This page opens new window
* - new window sends 'init' msg
* - onload() in new window sends 'increment_loadCount' msg
* - onpageshow() in new window sends 'increment_testCount' msg
* - This page sends 'forward_back' msg
* - onpageshow() in new window 'increment_testCount'
* - This page sends 'finish_test' msg
* - onpageshow() in new window sends 'finished' msg
*/ var testCount = 0; // Used by the test files. var loadCount = 0; var goneBack = false; var bc = SpecialPowers.wrap(BroadcastChannel).unpartitionedTestingChannel("bug1379762");
bc.onmessage = (messageEvent) => {
let message = messageEvent.data;
if (message == "init") {
is(testCount, 0, "new window should only be loaded once; otherwise the loadCount variable makes no sense");
} else if (message == "increment_loadCount") {
loadCount++;
is(loadCount, 1, "Should only get one load")
} else if (message == 'increment_testCount') {
testCount++;
if (testCount == 1) {
bc.postMessage("forward_back");
goneBack = true;
} else if (testCount == 2) {
ok(goneBack, "We had a chance to navigate backwards and forwards in the new window to test BFCache");
bc.postMessage("finish_test");
}
} else if (message == "finished") {
bc.close();
SimpleTest.finish();
}
}
SimpleTest.waitForExplicitFinish();
function runTest() {
// If Fission is disabled, the pref is no-op.
SpecialPowers.pushPrefEnv({set: [["fission.bfcacheInParent", true]]}, () => {
window.open("file_bug1379762-1.html", "", "width=360,height=480,noopener");
});
}
</script>
</pre>
</body>
</html>
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(vorverarbeitet am 2026-08-25)
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