bug#46807: [website] return 404 with HTTP header 'Accept-Language: zh-CN, zh'

Thank you for your help! Everything goes fine now.

bug#47241: [website] return 404 with header 'Accept-Language: zh-CN, zh'

Hello! My webbrowser has set ‘Accept-Language’ to 'zh-CN,zh' by default, and https://guix.gnu.org will return 404. I have tested with curl, 'zh-CN,zh', 'zh-CN', 'zh-cn' is 404 while 'zh', 'zh_CN' is 200. The first time I found it is on 2021-02-23. And it didn't happened about one or two months