Modify build_multipart_body method
[[body + '--' + boundary + '--' ]] -> [[body + '--' + boundary + '--\r\n']]
Modify multipart upload!
Multipart works fine. What is the additional '\r\n' supposed to fix? This was recently changed, by the way:
Ok I'm closing down this issue. I've been testing multipart uploads using a number of different endpoints and it works fine. If you think the multipart body needs further revision please open up a new ticket.