use Rack::Deflater to config.ru in an attempt to serve gzipped css and js.
but when I load the page I still see that css and js are served and not the css.gz
should I see css.gz or js.gz? or did I miss something
This is the correct behavior. Check your HTTP headers to see if the gzip compression actually works:
curl -I -H "Accept-Encoding: gzip,deflate" <url>
This should return something like
Content-Encoding: gzip if gzip compression is enabled.
You can also see the compressed output by using a lowercase
-i. Alternatively to curl, you can also use the WebKit developer tools (or something similiar) to check this.