Alex_mex 0 Posted April 15, 2024 Hi everybody, I have a strange error:  1. First I'm connecting to RAD Server and do login (TEMSProvider and TBackendAuth):   EMSProvider1.UserName := Edit1.Text;  EMSProvider1.Password := Edit2.Text;  BackendAuth1.UserName := Edit1.Text;  BackendAuth1.Password := Edit2.Text;  try    BackendAuth1.Login;    Memo1.Lines.Add('Logged in');  except    on E: Exception do Memo1.Lines.Add(E.message);  end;  Login always is successfull  2. Then I'm trying to do request using TBackendEndpoint     try      RecentStudiesEP.ClearBody;      RecentStudiesEP.Params.Clear;      RecentStudiesEP.Resource := 'Studies';      RecentStudiesEP.ResourceSuffix := DateToIso8601(Now,TRUE);      RecentStudiesEP.Params.AddItem('DoctorID','455BAC0D-87B3-4D2B-9740-E0B46C65BA82');      RecentStudiesEP.Execute;      {Do something}    except      on E : exception do             begin               Memo1.Lines.Add(e.Message);             end;    end;  On the first request I'm always getting an error: EMS Error: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-str  But after that everythig starts to work fine without any errors, the same request does not give any problem and I can use it whenever I want and without any error  What it can be? Where is an error? And how to fix it?            Share this post Link to post