N.B. Pipelining can be used for any idempotent request (so PUTs and DELETEs work too). That said, lack of broad implementation support for pipelining is still a

N.B. Pipelining can be used for any idempotent request (so PUTs and DELETEs work too). That said, lack of broad implementation support for pipelining is still an issue. Since HTTP/2.0 is being based on SPDY, hopefully we'll see a day where this is less of an issue.