I have a warning in Google for my font-face:
Resource interpreted as Font but transferred with MIME type application/octet-stream: \".../Content/Fonts/iconFo
For Nginx: (Path: /etc/nginx/mime.types)
font/ttf ttf; font/otf otf; application/x-font-woff woff;
You dont need application/vnd.ms-fontobject eot; because it exists already.
application/vnd.ms-fontobject eot;
After that restart Nginx: service nginx restart
service nginx restart
Done.