Eliminating X-Progress-ID from query string?

Hi there,

When using the nginx_upload and nginx-upload-progress modules what is
the
best way to eliminate the X-Progress-ID parameter from the query string
so
that the browser shows
http://example.com/upload_data instead of
http://example.com/upload_data?X-Progress-ID=49266990881c3e66e40eef71e7419f27once
the upload is completed?

thanks in advance, francisco