POST /login.jsp HTTP/1.1
Host: trainer.chi.matasano.com:5443
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://trainer.chi.matasano.com:5443/login.jsp
Cookie: rack.session=273b4783a3165b982c9bf5f75d2d35da47a6973672691099cbf282d42649c773
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 25

username=abc&password=abc