test_rel_preconnect.html

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<!DOCTYPE HTML>

<html>

<!--

-->

<head>

  <title>Test for link rel=preconnect</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css"  href="/tests/SimpleTest/test.css" />

<script type="text/javascript">

SimpleTest.waitForExplicitFinish();

const Cc = SpecialPowers.Cc, Ci = SpecialPowers.Ci, Cr = SpecialPowers.Cr;

var remainder = 4;

var observer;

async function doTest()

  await SpecialPowers.setBoolPref("network.http.debug-observations", true);

  SimpleTest.registerCleanupFunction(async () => {

    await SpecialPowers.setBoolPref("network.http.debug-observations", false);

});

  observer = SpecialPowers.wrapCallback(function() {

    remainder--;

    ok(true, "observed remainder = " + remainder);

    if (!remainder) {

      SpecialPowers.removeObserver(observer, "speculative-connect-request");

      SimpleTest.finish();

});

  SpecialPowers.addObserver(observer, "speculative-connect-request");

  // test the link rel=preconnect element in the head for both normal

  // and crossOrigin=anonymous

  var link = document.createElement("link");

  link.rel = "preconnect";

  link.href = "//localhost:8888";

  document.head.appendChild(link);

  link = document.createElement("link");

  link.rel = "preconnect";

  link.href = "//localhost:8888";

  link.crossOrigin = "anonymous";

  document.head.appendChild(link);

  // test the http link response header - the test contains both a

  // normal and anonymous preconnect link header

  var iframe = document.createElement('iframe');

  iframe.src = 'rel_preconnect.sjs?//localhost:8888';

  document.body.appendChild(iframe);

</script>

</head>

<body onload="doTest();">

<p id="display"></p>

<div id="content" style="display: none"></div>

<pre id="test">

</pre>

</body>

</html>