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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1790666
-->
<head>
<title>Test for Bug 1790666</title>
<script src="/tests/SimpleTest/SimpleTest.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=1790666">Mozilla Bug 1790666</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
async function singleTest(testValue, description) {
info(`Starting test: ${description}`);
let bc = new BroadcastChannel("testChannel");
let promise = new Promise(resolve => {
bc.addEventListener("message", event => {
info(`received message from testChannel: ${event.data}`);
resolve(event.data);
}, { once: true });
});
info("Opening pop-up");
let popup = window.open("", "_blank");
popup.sessionStorage.setItem("testItem", testValue);
info("Navigating pop-up to COOP page");
popup.location = new URL("file_sessionstorage_across_coop.html", window.location);
let newValue = await promise;
is(newValue, testValue, "Value matches expected value");
}
add_task(async function() {
// Cross-Origin-Opener-Policy is only supported in secure contexts, so
// make the test a secure context.
await SpecialPowers.pushPrefEnv({
"set": [["dom.securecontext.allowlist", "mochi.test"]],
});
await singleTest("short test value", "short test value");
let longValue = "A".repeat(SpecialPowers.getIntPref("browser.sessionstore.dom_storage_limit") * 2);
await singleTest(longValue, "long test value");
});
</script>
</pre>
</body>
</html>
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