Download problems with *.tar (httpd.cnf)

Hi,

we are presenting *.tar Files for downloading on Domino 9.0.1 FP8 on Linux64.

In Chrome download on direct click fails: Error - NetworkError (Firefox has no problem !!!)

Download on ‘rightclick/save as’ works.

From former issues i know that httpd.cnf is involved concerning filetypes for download.

AddType .tar application/x-tar # Standard. Does work on another Domino server !!!
#AddType .tar application/octet-stream # I’ve tried this, without success …

Does anybody have an idea ???