Aug 9, 2009 4
Correct MIME Type for CSS Web Fonts
Support for CSS3 Fonts via @font-face is now available in Microsoft Internet Explorer, Mozilla Firefox, and Apple Safari, with support in Opera and Google Chrome due soon.

With increasing support, more sites are being designed with web fonts. However, many web servers are not providing the correct MIME type for these files.
For the Apache web server, the following configuration in an .htaccess file will provide the correct MIME type for web fonts:
AddType application/vnd.ms-fontobject .eot
AddType application/octet-stream .otf .ttf