"NetworkError: 404 Not Found fontawesome-webfont.woff?v=4.0.3

This worked for me: Add the following lines to your web.config

<system.webServer>
 <staticContent>
   <remove fileExtension=".woff"/>
   <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
 </staticContent>
</system.webServer>

You have to add these lines because by default Apache is not configured with .woff as a default MIME-type. Apache default MIME-type This holds for IIS as well. As Seb Duggan explains here:IIS default MIME, by default .woff files will not be served by the server.