SSO ticket wont work for displaying contents of internally stored files

Question

Thx to the help I got here the application here is all in all running well with SSO as authentification method.
But the application has a part where it tries to open & display files stored in the backend (e.g. Excel-Sheets, TIFs etc).
This part was running fine with the old basic authentification, but now it opens the application and then seems to try to authenticate again (at least that's how it looks in excel as there is shown the login-dialog again).
Any way I can work around that - at the moment it makes an important part of the application useless :\.
Method used to display:
gets the data, transfers it to a xstring and then sends it to the browser via:
    lf_value = lf_mimetype.
    response->set_header_field( name = 'Content-Type'
                                value = lf_value ).
    response->delete_header_field( 'Cache-Control' ).
    response->delete_header_field( 'Expires' ).
    response->delete_header_field( 'Pragma' ).
    lf_value = lf_filename.
    CONCATENATE 'inline; filename="' lf_filename INTO lf_value.
    response->set_header_field( name = 'Content-Disposition'
                                value = lf_value ).
    response->set_data( lf_content ).
    navigation->response_complete( ).

Answer 1

Hello!
Well first thing is, now after fooling around a bit and changing some code it works - though first method I used too was as described in I think a weblog from you for showing documents inline.
In my case there are files of different types stored via cfolders...and my application (after login in via a copy of the system/login application) amongst other things enables a web-based search & display of these files.
For this I fetch the contents of the file from the backend and then deliver the contents to http.
As I said, worked with basic authentification but had troubles after switching to the login-application.
Just my guess that it was the ticket gettin lost as i had the effect described above with excel.
Problem is that this project after gettin display to work again was completed and so now into a new project at a different company-location & system so cant make the trace.
Thx for helpin and sorry I had let this open - just was curious if this problem could be solved some better way then mine.