cannot set tracking id

[Bernicia]

Hello,

I am using nginx 1.6 - the latest debian extras package with upload progress module. (and php5-fpm)

I cannot get the module to detect and set my tracking id. I do a normal file upload (not ajax call) and however I set the post parameter (I can't set it in header as I can't make an ajax call) the module never recognises it. I get the same lines logged each time

2014/10/27 09:52:26 [debug] 32651#0: *86 upload-progress: get_tracking_id
2014/10/27 09:52:26 [debug] 32651#0: *86 upload-progress: get_tracking_id no header found
2014/10/27 09:52:26 [debug] 32651#0: *86 upload-progress: get_tracking_id no id found
2014/10/27 09:52:26 [debug] 32651#0: *86 trackuploads no id found in POST upload req

The ajax call to progress then gives me a 405 error (not allowed) which I guess is because tracking has not been initialised.

2014/10/27 09:52:27 [debug] 32651#0: *87 upload-progress: get_tracking_id
2014/10/27 09:52:27 [debug] 32651#0: *87 malloc: 0000000001E23BA0:16
2014/10/27 09:52:27 [debug] 32651#0: *87 upload-progress: get_tracking_id found header: 1159563624
2014/10/27 09:52:27 [debug] 32651#0: *87 trackuploads id found: 1159563624
2014/10/27 09:52:27 [debug] 32651#0: *87 trackuploads not tracking in this location for id: 1159563624

and

2014/10/27 09:52:27 [debug] 32651#0: *87 http finalize request: 405, "/progress?" a:1, c:1
2014/10/27 09:52:27 [debug] 32651#0: *87 http special response: 405, "/progress?"
2014/10/27 09:52:27 [debug] 32651#0: *87 http set discard body
2014/10/27 09:52:27 [debug] 32651#0: *87 uploadprogress error-tracker error: 405
2014/10/27 09:52:27 [debug] 32651#0: *87 uploadprogress error-tracker not tracking in this location

Any ideas? I've definitely got the post parameter name correct, and I've debugged the request and can see the correct post parameter on the server - the module just doesn't detect it.

many thanks
Dave