Update: This was added in nginx 1.3 officially. You may still use this article if mime.types file is not uptodate on your nginx-server.
On a nginx site, for font files, especially woff version, we ran into issues.
Browser console was showing warnings like:
Resource interpreted as Font but transferred with MIME type font/x-woff
Resource interpreted as Font but transferred with MIME type font/font-woff
Solution
Open /etc/nginx/mime.types
Add following lines in it:
application/font-woff woff;
application/x-font-woff woff;
Save file.
Reload nginx. (service nginx reload)