joyent/node — pull request #7533 by kpdecker (2014-04-30 13:21:28+00:00)
Title: http: Optimize queued client aborts

Avoid sending unsent data and destroying otherwise legitimate sockets
for requests that are aborted while still in the agent queue. This
reduces stress on upstream systems who will likely respond to the
request but client app already knows that it will be dropped on the
floor and also helps avoid killing keep-alive connections.