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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>