I request an "ljsession" cookie by using the getchallenge/sessiongenerate functions in the flat interface. I get back an "ljsession" value which I save to use later as a cookie. This part still works.
When I call export_comments.bml, setting "Cookie: ljsession=
I can't see anything obvious that I'm missing here. I tried using both http://livejournal.com and http://www.livejournal.com, thinking that the subdomain might make a difference. I do note that export_comments.bml works fine in my browser, though the non-www request is redirected to a www.livejournal.com hostname.
Does anybody have any idea what else I might need to do here?