POST /index.html HTTP/1.0
Content-Type: application/x-www-form-urlencoded; charset=utf8
Content-Length: 13
Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Referer: http://example.com/awesome.html
User-Agent: Mozilla/Inf

a=1&b=2&c=3
