Hmm, that isn't exactly how you spell $cgi->param('POSTDATA')

Sorry about that. I checked my code and it's spelled correctly in my code.

What version of erlang inets ? Surely even erlang inets httpd server have version numbers :)

It's actually in the curl output I posted:

* upload completely sent off: 16 out of 16 bytes
< HTTP/1.1 200 OK
< Date: Fri, 09 Mar 2018 14:52:03 GMT
< Server: inets/6.4.5
[download]

I'm using erlang 20.2, so I assume inets 6.4.5 is the most recent version. Thanks for taking a look.

I'm fairly certain thats the version that tries to read from STDIN. So I would suggest checking CGI.pm docs for ->new and use the version of the call that doesn't try to read from STDIN

Yep, my$q->CGI-new('') allows me to use the CGI functions after I manually read from STDIN.