test_1331680_iframe.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=643051

-->

<head>

  <title>Cookies set from iframe in content process</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=1331680">Mozilla Bug 1331680</a>

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

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

<script type="application/javascript">

SimpleTest.waitForExplicitFinish();

const IFRAME_COOKIE_NAMES = ["if1", "if2_1", "if2_2"];

const ID = ["if_1", "if_2", "if_3"];

var gScript = SpecialPowers.loadChromeScript(SimpleTest.getTestFileURL('file_1331680.js'));

/* Test iframe

 * 1. Create three iframes, and one of the iframe will create two cookies.

 * 2. Confirm the cookies can be proessed from observer.

 * 3. Confirm document.cookie can get cookies "if2_1" and "if2_2".

 * 4. Confirm the iframe whose source is "about:blank" can get parent's cookies.

*/

function createIframe(id, src, sandbox_flags) {

  return new Promise(resolve => {

    var ifr = document.createElement("iframe");

    ifr.id = id;

    ifr.src = src;

    ifr.sandbox = sandbox_flags;

    ifr.addEventListener("load", resolve);

    document.body.appendChild(ifr);

});

};

function confirmCookies(id) {

  is(document.cookie, "if2_1=if2_val1; if2_2=if2_val2", "Confirm the cookies can get after iframe was deleted");

  var new_ifr = document.getElementById(id);

  is(new_ifr.contentDocument.cookie, document.cookie, "Confirm the inner document.cookie = parent document.cookie");

  document.cookie = IFRAME_COOKIE_NAMES[1] + "=; expires=Thu, 01-Jan-1970 00:00:01 GMT";

  document.cookie = IFRAME_COOKIE_NAMES[2] + "=; expires=Thu, 01-Jan-1970 00:00:01 GMT";

  is(document.cookie, "", "Removed all cookies");

  SpecialPowers.clearUserPref("network.cookie.sameSite.laxByDefault");

  SimpleTest.finish();

addEventListener("message", function(event) {

  is(event.data, document.cookie, "Confirm the iframe 2 can communicate with iframe");

});

SpecialPowers.pushPrefEnv({

  // Bug 1617611: Fix all the tests broken by "cookies SameSite=lax by default"

  set: [["network.cookie.sameSite.laxByDefault", false]],

}).then(_ => createIframe(ID[0], "file_iframe_allow_scripts.html", "allow-scripts"))

  .then(_ => createIframe(ID[1], "file_iframe_allow_same_origin.html", "allow-scripts allow-same-origin"))

  .then(_ => createIframe(ID[2], "about:blank", "allow-scripts allow-same-origin"))

  .then(_ => confirmCookies(ID[2]));

</script>

</div>

<pre id="test">

</pre>

</body>

</html>