在使用Passport认证的网站返回401错误代码

 HttpContext context1 = application1.Context;
      if ((PassportAuthenticationModule._fAuthChecked && PassportAuthenticationModule._fAuthRequired) && (((context1.User != null) && (context1.User.Identity != null)) && (context1.User.Identity is PassportIdentity)))
      {
            PassportIdentity identity1 = (PassportIdentity) context1.User.Identity;
            if ((context1.Response.StatusCode == 0x191) && !identity1.WWWAuthHeaderSet)
            {
                  if (((PassportAuthenticationModule._LoginUrl == null) || (PassportAuthenticationModule._LoginUrl.Length < 1)) || (string.Compare(PassportAuthenticationModule._LoginUrl, "internal", StringComparison.Ordinal) == 0))
                  {
                        context1.Response.Clear();
                        context1.Response.StatusCode = 200;
                        if (!ErrorFormatter.RequiresAdaptiveErrorReporting(context1))
                        {
                              string text1 = context1.Request.Url.ToString();
                              int num1 = text1.IndexOf(‘?’);
                              if (num1 >= 0)
                              {
                                    text1 = text1.Substring(0, num1);
                              }
                              string text2 = identity1.LogoTag2(HttpUtility.UrlEncode(text1, context1.Request.ContentEncoding));
                              string text3 = SR.GetString("PassportAuthFailed", new object[] { text2 });
                              context1.Response.Write(text3);
                        }
                        else
                        {
                              ErrorFormatter formatter1 = new PassportAuthFailedErrorFormatter();
                              context1.Response.Write(formatter1.GetAdaptiveErrorMessage(context1, true));
                        }
                  }