--- /dev/null
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$r->headers->setCookie(new Cookie('CookieSamesiteLaxTest', 'LaxValue', 0, '/', null, false, true, false, Cookie::SAMESITE_LAX));
+$r->sendHeaders();