var uriStringBuilder = new StringBuilder("https://steamcommunity.com/openid/login");
            uriStringBuilder.AppendFormat("?openid.ns={0}", "http://specs.openid.net/auth/2.0");
            uriStringBuilder.AppendFormat("&openid.mode={0}", "checkid_setup");
            uriStringBuilder.AppendFormat("&openid.return_to={0}", WebAuthenticationBroker.GetCurrentApplicationCallbackUri());
            uriStringBuilder.AppendFormat("&openid.realm={0}", "https://SteamUWP.com");
            uriStringBuilder.AppendFormat("&openid.identity={0}", "http://specs.openid.net/auth/2.0/identifier_select");
            uriStringBuilder.AppendFormat("&openid.claimed_id={0}", "http://specs.openid.net/auth/2.0/identifier_select");