GET /neg HTTP/1.1
host:

GET /neg HTTP/1.1
HOST:
Accept: text/html

GET /neg HTTP/1.1
HOST:
Accept: text/html
Accept-Language: fr

GET /neg HTTP/1.1
Accept-Language: es
Host:

GET /neg HTTP/1.1
Accept-Language: es
Accept: foo/bar
Host:

GET /neg HTTP/1.1
Accept-Language: it
HOST

