Christopher Snell wrote:
> I've attached a packet capture.

The output of tcpdump (maybe server- and client-side) would be much more
useful. The transfered content data is probably uninteresting.

> The only difference I see is that the curl side never sends a FIN.

You'd expect two FINs. One from curl to terminate its request and one
from the server once everything has been sent. FIN indicates "I won't
write any more" i.e., causes a half-closed connection.

-- 
Christian