The src and downloadtype are strictly necessary in a fulfillmentToken (.acsm file xml root element), however they should appear in the fulfilmentResponse that you get after submitting a signed fulfillmentToken to the the ACS4 server. Looks like Bluefire missed that - I'll point that out to them.
I don't understand how this can be a bluefire issue, because at this point, i only click on the GBLink and read the content of the acsm file! and i didn't see any src or downloadtype like i should.
am i getting all this wrong?
Thank's for the help.