wtf, how does this upload fine here but not on danbooru?
my understanding, based on how it was explained to me, is that danbooru's upload timeout may apply not only to the initial upload, but also to the propagation of the upload to the other file-servers (note that danbooru is load-balanced across a small cluster). testbooru of course is not load-balanced. though i'm not sure whether this affects just local file uploads, remote uploads or both.
