T 192.168.1.100:56740 -> 69.59.197.21:80 [AP]
GET / HTTP/1.1.
Host: stackoverflow.com.
User-Agent: Go http package.
Accept-Encoding: gzip.
.

#
T 69.59.197.21:80 -> 192.168.1.100:56740 [A]
HTTP/1.1 200 OK.
Cache-Control: public, max-age=5.
Content-Type: text/html; charset=utf-8.
Content-Encoding: gzip.
Expires: Tue, 30 Oct 2012 07:52:10 GMT.
Last-Modified: Tue, 30 Oct 2012 07:51:10 GMT.
Vary: *.
Date: Tue, 30 Oct 2012 07:52:04 GMT.
Content-Length: 43284.
[....]