Proper data:
423\r\n
24\r\n
0\r\n
21\r\n
0\r\n

Sent data:
Transfer-Encoding: chunked\r\n\r\n6\r\n423\r\n2\r\n4\r\n4\r\n0\r\n4\r\n21\r\n0\r\n2\r\n\r\n\r\n0\r\n\r\n