[FMESERVER2014] Http 401 - unauthorized when trying to upload data

I'm trying to reproduce fmepedia-dataupload (github.com/safesoftware/fmepedia-dataupload) example on my server with my own workspace.

 

First http request tu get a session ID with a token works great. But i'm encountering an http 401 error (unauthorized) when i'm trying to upload data file.

 

 

So my question is : what changes should i do on Server Security configuration to let my user upload data?