http
HTTP/1.1 200 OK
Content-Type: text/html
Permissions-Policy: browsing-topics=(self)
Permissions-Policy: attribution-reporting=(self)
<!DOCTYPE html>
<html>
<head><title>News Portal</title></head>
<body>
<script>
document.browsingTopics().then(topics => {
console.log('User interests:', topics);
// Use topics for ad targeting
});
</script>
</body>
</html>