public function getHttpPostBindingResponse(SamlMessage $message)
    {
        $bindingFactory = new BindingFactory();
        $postBinding = $bindingFactory->create(SamlConstants::BINDING_SAML2_HTTP_POST);

        $messageContext = new MessageContext();
        $messageContext->setMessage($message);

        $httpResponse = $postBinding->send($messageContext);

        return new HtmlResponse($httpResponse->getContent());
    }