It may or then again it may not be of interest that nginx is somewhat unique
in its behavior on how it deals with a half-close compared to other HTTP
systems I've observed so far. These other systems Apache, IIS, Varnish,
lighthttpd, ... first complete the response and then finish the close
handshake. nginx is the only system I've observed so far which responds
with an immediate close (FIN/ACK).