private string GetResumeUrlFromPartialSignInCookie(HttpResponseMessage resp) { var cookie = resp.GetCookies().Where(x=>x.Name == Constants.PartialSignInAuthenticationType).Single(); var ticket = ticketFormatter.Unprotect(cookie.Value); var urlClaim = ticket.Identity.Claims.Single(x => x.Type == Constants.ClaimTypes.PartialLoginReturnUrl); return urlClaim.Value; }