Nelmio\SecurityBundle\EventListener\FlexibleSslListener::onPostLoginKernelResponse PHP Method

    public function onPostLoginKernelResponse(FilterResponseEvent $e)
    {
        if (HttpKernelInterface::MASTER_REQUEST !== $e->getRequestType()) {
            return;
        }
        $response = $e->getResponse();
        $longestExpire = 0;
        foreach ($response->headers->getCookies() as $cookie) {
            // find longest expiration time
            $longestExpire = max($longestExpire, $cookie->getExpiresTime());
            if (!$cookie->isSecure()) {
                // force existing cookies (remember-me most likely) to be secure
                $response->headers->setCookie(new Cookie($cookie->getName(), $cookie->getValue(), $cookie->getExpiresTime(), $cookie->getPath(), $cookie->getDomain(), true, $cookie->isHttpOnly()));
            }
        }
        if (null === $e->getRequest()->cookies->get($this->cookieName)) {
            // set the auth cookie
            $response->headers->setCookie(new Cookie($this->cookieName, '1', $longestExpire, '/', null, false, false));
        }
        // force session cookie to be secure
        $params = session_get_cookie_params();
        $response->headers->setCookie(new Cookie(session_name(), session_id(), 0, $params['path'], $params['domain'], true, $params['httponly']));
    }