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Test Info:

<!DOCTYPE HTML>
<html>
<head>
<title> Bug 1706126: Test https-first, downgrade first request and then upgrade redirection to subdomain</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script class="testbody" type="text/javascript">
"use strict";
/*
* Description of the test:
* First we request http://redirect-example.com which HTTPS-First upgrades to https://redirect-example.com.
* The request https://redirect-example.com doesn't receive an answer (timeout), so we send a background
* request.
* The background request receives an answer. So the request https://redirect-example.com gets downgraded
* to http://redirect-example.com by the exempt flag.
* The request http://redirect-example.com gets redirected to http://wwww.redirect-example.com. At that stage
* HTTPS-First should clear the exempt flag and upgrade the redirection to https://wwww.redirect-example.com.
*
*/
SimpleTest.waitForExplicitFinish();
const REQUEST_URL =
let testWin;
window.addEventListener("message", receiveMessage);
// Receive message and verify that it is from an https site.
async function receiveMessage(event) {
let data = event.data;
ok(data.result === "upgraded", "Redirected successful to 'https' for subdomain ");
is(data.scheme,"https:", "scheme is 'https' for subdomain");
testWin.close();
window.removeEventListener("message", receiveMessage);
SimpleTest.finish();
}
async function runTest() {
testWin = window.open(REQUEST_URL, "_blank");
}
SpecialPowers.pushPrefEnv({ set: [
["dom.security.https_first", true]
]}, runTest);
</script>
</body>
</html>