public function indexAction()
    {
        $footerContentId = $this->container->getParameter('ezdemo.footer.content_id');
        $footerContent = $this->getRepository()->getContentService()->loadContent($footerContentId);

        $response = new Response();
        $response->setPublic();
        $response->setSharedMaxAge(86400);
        $response->headers->set('X-Location-Id', $footerContent->contentInfo->mainLocationId);
        $response->setVary('X-User-Hash');

        return $this->render(
            'eZDemoBundle::page_footer.html.twig',
            array('content' => $footerContent),
            $response
        );
    }