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Test Info:

<!DOCTYPE html>
<meta charset="utf-8" />
<meta name="timeout" content="long">
<title>Test third-party cookie heuristics</title>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/cookies/resources/cookie-helper.sub.js"></script>
<script src="/cookies/third-party-cookies/resources/test-helpers.js"></script>
<body>
<script>
document.body.onload = async () => {
// Set SameSite=None cookie in a 1P context using HTTP.
const attributes = "Secure;Path=/;SameSite=None";
const httpCookieName = "1P_http";
await credFetch(
`${self.origin}/cookies/resources/set.py?${httpCookieName}=foobar;${attributes}`);
// Set another cookie using document.cookie.
const domCookieName = "1P_dom";
document.cookie = `${domCookieName}=foobar;${attributes}`;
const cookieNames = [httpCookieName, domCookieName];
// Set another cookie using the CookieStore API, if supported.
if (window.cookieStore) {
const cookieStoreCookieName = "1P_cs";
await cookieStore.set({
name: cookieStoreCookieName,
value: "foobar",
path: "/",
sameSite: "none",
});
cookieNames.push(cookieStoreCookieName);
}
// Open a cross-site window which will open a popup with the current origin.
const crossSiteUrl = new URL(
`./resources/third-party-cookies-cross-site-popup-opener.html?origin=${encodeURIComponent(self.origin)}`,
get_host_info().HTTPS_NOTSAMESITE_ORIGIN + self.location.pathname);
const popup = window.open(crossSiteUrl);
fetch_tests_from_window(popup);
};
</script>
</body>