[mod_openssl] ssl.read-ahead="disable" for stream
set default ssl.read-ahead = "disable" for streaming when
server.stream-request-body = 1 or 2 is set in the global scope
It is still recommended that embedded and other low-memory systems
explicitly set ssl.read-ahead = "disable" in the global scope
(regardless of server.stream-request-body setting)
On the other hand, for systems which enable server.stream-request-body
to non-zero value, and for which sufficient memory is available, then
ssl.read-ahead = "enable" is recommended and should be explicitly set
in the global or $SERVER["socket"] configuration blocks in lighttpd.conf
x-ref:
"https POST requests buffered in RAM since v1.4.41?"
https://redmine.lighttpd.net/boards/2/topics/7520