Response headers is empty

2 
    function redirect(string $routeName, array $data = [], array $queryParams = []): Response
    {
        $response = new Response();
        $response->withHeader('Location', urlFor($routeName, $data, $queryParams));
        $response->getBody()->write("Hello");
        return $response;
    }

Added for test and it works

$response->getBody()->write("Hello");

but $response->withHeader is not.