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<!DOCTYPE HTML>
<html>
<head>
<title>Bug 1747673 : HTTPS First fallback to http for non-standard 5xx status code responses</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:
 * Perform five tests where https-first receives an
 * 5xx status code (standard and non-standard 5xx status) if request is send to site by https.
 * Expected behaviour: https-first fallbacks to http after receiving 5xx error.
 * Test 1: 501 Response
 * Test 2: 504 Response
 * Test 3: 521 Response
 * Test 4: 530 Response
 * Test 5: 560 Response
 */

SimpleTest.waitForExplicitFinish();

const REQUEST_URL =
  "http://example.com/tests/dom/security/test/https-first/file_downgrade_500_responses.sjs";

const redirectQueries = ["?test1a", "?test2a","?test3a", "?test4a", "?test5a"];
let currentTest = 0;
let testWin;
let currentQuery;
window.addEventListener("message", receiveMessage);

// Receive message and verify that it is from an http site.
// When the message is 'downgraded' then it was send by an http site
// and the redirection worked.
async function receiveMessage(event) {
  let data = event.data;
  currentQuery = redirectQueries[currentTest];
  ok(data.result === "downgraded", "Redirected successful to 'http' for " + currentQuery);
  is(data.scheme, "http:", "scheme is 'http' for " + currentQuery );
  testWin.close();
  if (++currentTest < redirectQueries.length) {
    runTest();
    return;
  }
  window.removeEventListener("message", receiveMessage);
  SimpleTest.finish();
}

async function runTest() {
  currentQuery = redirectQueries[currentTest];
  testWin = window.open(REQUEST_URL + currentQuery, "_blank");
}

SpecialPowers.pushPrefEnv({ set: [
    ["dom.security.https_first", true]
  ]}, runTest);

</script>
</body>
</html>