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Test Info:

<!DOCTYPE html>
<meta charset="utf-8"/>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/cookies/resources/cookie-helper.sub.js"></script>
<!-- We're appending an <iframe> to the document's body, so execute tests after we have a body -->
// This test creates an iframe with on the specified origin,
// which sends a postMessage event with the cookies it received back to the
// parent (i.e., here). Upon receiving the message, the test verifies that the
// correct cookies were sent to the iframe, and posts a message back to the
// iframe telling it to reload itself. Upon reload, the iframe sends a
// postMessage event back to the test with the cookies it received, which are
// again verified.
function create_test(origin, target, expectedStatus, expectedDomStatus, title) {
promise_test(t => {
var value = "" + Math.random();
return resetSameSiteCookies(origin, value)
.then(_ => {
return new Promise((resolve, reject) => {
var iframe = document.createElement("iframe");
iframe.onerror = _ => reject("IFrame could not be loaded.");
var reloaded = false;
var msgHandler = e => {
try {
verifySameSiteCookieState(expectedStatus, value,, expectedDomStatus);
} catch (e) {
if (reloaded) {
window.removeEventListener("message", msgHandler);
resolve("IFrame received the cookie.");
} else {
reloaded = true;
e.source.postMessage("reload", "*");
window.addEventListener("message", msgHandler);
iframe.src = target + "/cookies/resources/";
}, title);
create_test(SECURE_ORIGIN, SECURE_ORIGIN, SameSiteStatus.STRICT, DomSameSiteStatus.SAME_SITE, "Reloaded same-host fetches are strictly same-site");
create_test(SECURE_SUBDOMAIN_ORIGIN, SECURE_SUBDOMAIN_ORIGIN, SameSiteStatus.STRICT, DomSameSiteStatus.SAME_SITE, "Reloaded subdomain fetches are strictly same-site");
create_test(SECURE_CROSS_SITE_ORIGIN, SECURE_CROSS_SITE_ORIGIN, SameSiteStatus.CROSS_SITE, DomSameSiteStatus.CROSS_SITE, "Reloaded cross-site fetches are cross-site");