How to enable correct charset HTTP-header in NGINX

What is the right way to enable correct charset headers in NGINX?

I'm analyzing my website with Google Page Speed. It says that I should specify the charset of HTML files in HTTP-headers. What is the right way to do this?

I already tried to set charset utf-8; in the server {} declaration of my NGINX configuration file, but it hasn't got any effect.

My server responds with the following header:

Connection: keep-alive
Date: Fri, 16 Sep 2011 12:43:24 GMT
Last-Modified: Fri, 02 Sep 2011 15:13:17 GMT
Server: nginx/0.7.67

Thank you.

Solution 1:

Adding charset utf-8; is pretty much everything you need to do. Are sure that you didn't forget to reload nginx after you changed the configuration file?

Besides at the moment of writing, curl -I http://vorb.de/ returns the following result:

HTTP/1.1 200 OK
Server: nginx/0.7.67
Date: Fri, 16 Sep 2011 13:20:03 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 1705
Last-Modified: Fri, 02 Sep 2011 15:13:17 GMT
Connection: keep-alive
Vary: Accept-Encoding
Accept-Ranges: bytes

So everything looks ok now.

Solution 2:

Setting the charset might not work if you do not set "charset_types" directive which you want UTF-8.

For example: When you set "charset utf-8;", all HTML will reflect, but not JSON files, because they are not set by default on "charset_types".

http://nginx.org/en/docs/http/ngx_http_charset_module.html#charset_types