 Create a cross-site <iframe> which embeds the cookies' origin into this
// page.
const iframe = document.createElement("iframe");
const url = new URL(
    "/cookies/third-party-cookies/resources/" +
        "third-party-cookies-cross-site-embed.html",
    origin);
iframe.src = String(url);
document.body.appendChild(iframe);

fetch_tests_from_window(iframe.contentWindow);

</script>
</body>
