private static void ThirdPartyInitiatedLoginCallback(IHttpContext context)
        {
            result = context.Request.Uri.Query;
            OIDCAuthorizationRequestMessage requestMessage = new OIDCAuthorizationRequestMessage();

            requestMessage.DeserializeFromQueryString(request);

            OpenIdRelyingParty rp = new OpenIdRelyingParty();

            rp.ThirdPartyInitiatedLogin(requestMessage, param);
        }