public function indexAction(Request $request, $domain, $identifier)
    {
        $locale = substr($request->getLocale(), 0, 2);  // Make sure to use only the two character locale
        try {
            $transUnit = $this->getTipTransUnit($locale, $domain, $identifier);
            $translatedTip = $transUnit->getTranslation($locale);
            return $this->render('TamagoTipsManagerBundle:Default:index.html.twig', [
                'tip' => $translatedTip, 'identifier' => $identifier
            ]);
        } catch (\RuntimeException $e) {
            // Catch exception and return 204
            return new Response(null, Response::HTTP_NO_CONTENT);
        }
    }