core-bundle/src/HttpKernel/JwtManager.php
private function hasCookie(Response $response): bool
    {
        /** @var Cookie[] $cookies */
        $cookies = $response->headers->getCookies();

        foreach ($cookies as $cookie) {
            if (self::COOKIE_NAME === $cookie->getName()) {
                return true;
            }
        }

        return false;
    }
private function hasCookie(Response $response): bool
    {
        /** @var Cookie[] $cookies */
        $cookies = $response->headers->getCookies();

        foreach ($cookies as $cookie) {
            if (self::COOKIE_NAME === $cookie->getName()) {
                return true;
            }
        }

        return false;
    }
Returns whether the response has a cookie with that name.