if not request_cookie is None:
                redirect_url = request.GET.get('redirect_url', None)
                redirect_url = self.b64_url_decode(redirect_url)
                
                response = HttpResponseRedirect('http://%s' % redirect_url)
                session_key = request.session.session_key
                domain = '.' + redirect_url.replace('http://', '').split('/')[0]
                
                response.set_cookie(settings.SESSION_COOKIE_NAME,
                        session_key, max_age=None,
                        expires=None, domain=domain,
                        path=settings.SESSION_COOKIE_PATH,
                        secure=settings.SESSION_COOKIE_SECURE or None)
                return HttpResponseRedirect(response)