chromium/third_party/blink/web_tests/http/tests/security/referrerPolicyHeader/resources/redirect-to.php

<?php
header('Access-Control-Allow-Origin: *');
header("Location: " . $_GET["location"]);
if (isset($_GET["referrerpolicy"])) {
  header("Referrer-Policy: " . $_GET["referrerpolicy"]);
}
?>