Config for service web font files with the correct mime type in IIS

webfonts-web.config.xml

<system.webServer>
    <staticContent>
       <remove fileExtension=".svg" />    
       <remove fileExtension=".svgz" />
       <mimeMap fileExtension=".svg" mimeType="image/svg+xml" /> <!-- Scalable Vector Graphics iPhone, iPad -->
       <mimeMap fileExtension=".svgz" mimeType="image/svg+xml" />
       <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />   <!-- Web Open Font Format for Firefox -->
       <mimeMap fileExtension=".ttf" mimeType="application/x-font-truetype" />   <!-- true type font for IE-->
       <mimeMap fileExtension=".otf" mimeType="application/x-font-opentype" /> <!-- OpenType-->
       <mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />   <!-- embedded open type for IE -->   
    </staticContent>
</system.webServer>

From one of the comments here : http://sebduggan.com/blog/serving-web-fonts-from-iis/