匹配任何语言

请求：“ http://example.com ”

GET / HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0
Accept: text/html
Accept-Language: *
Accept-Encoding: gzip, deflate
Connection: keep-alive

客户将接受任何语言。