http_stream:cgi

Change one of the properies. Supported properties are:

request(+Term): Associate a request to the stream.
header(+Term): Register a reply header. This header is normally retrieved from the send_header hook to send the reply header to the client.
connection(-Connection): One of Keep-Alive or close.
transfer_encoding(-Tranfer): One of chunked or none. Initially set to none. When switching to chunked from the header hook, it calls the send_header hook and if there is data queed this is send as first chunk. Each subsequent write to the CGI stream emits a chunk.