Thanks for the great support - httpd-2.0 HEAD 2004-08-07 really fixes it.
It even provides env variable "proxy-sendchunks" to select between compatible
"Content-Length" (default) and performance-wise "chunked".
Sounds pretty complete to me. Of course you'd need to stick to C-L unless
you *know* the backend accepts chunks.
If the client sent chunks, then it is safe to assume that the proxy can send chunks as well. Generally speaking, user agents only send chunks to applications that they know will accept chunks.
....Roy