FontAwesome error in IIS - css

Question

I get the following error in my ASP.Net MVC page when running in IIS
downloadable font: download failed (font-family: "FontAwesome" style:normal weight:normal stretch:normal src index:1): status=2147746065 source: http://localhost/MyApp/fonts/fontawesome-webfont.woff?v=4.1.01 sharedStyle:1:126778
The same page running locally, everything works fine. All files are deployed
and the path to FA is C:\inetpub\wwwroot\MyApp\Content\Template\font-awesome-4.1.0
I tried all solutions from Why font-awesome works on localhost but not on web ? and ASP.NET MVC4 Bundling with Twitter Bootstrap
UPDATE:
I added fileExtensions to system.webServer as suggested by Shyju, but it did not change the problem.
Is it possible that there is a problem with bundling? I use it in the following way:
public static void RegisterBundles(BundleCollection bundles)
{
StyleBundle sharedStyleBundle = new StyleBundle("~/bundles/sharedStyle");
sharedStyleBundle.Include("~/Content/Template/font-awesome-4.1.0/css/font-awesome.css");
...
bundles.Add(sharedStyleBundle);
...
}

Answer 1

IIS does not know how to serve these new types of files. We should explicitly tell that these are good file types.
Add this section to your web.config under <system.webServer> section. That should fix it.
<staticContent>
<mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />
<mimeMap fileExtension=".otf" mimeType="font/otf" />
<mimeMap fileExtension=".woff" mimeType="font/x-woff" />
<mimeMap fileExtension=".woff2" mimeType="application/font-woff2" />
</staticContent>
Sometimes, If it is already added ,you need to remove it and re-add it to avoid possible conflicts/errors.
<staticContent>
<remove fileExtension=".eot" />
<mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />
<remove fileExtension=".otf" />
<mimeMap fileExtension=".otf" mimeType="font/otf" />
<remove fileExtension=".woff" />
<mimeMap fileExtension=".woff" mimeType="font/x-woff" />
<remove fileExtension=".woff2" />
<mimeMap fileExtension=".woff2" mimeType="application/font-woff2" />
</staticContent>

Answer 2

I had to change the bundling as follows:
public static void RegisterBundles(BundleCollection bundles)
{
StyleBundle sharedStyleBundle =
new StyleBundle("~/Content/Template/font-awesome-4.1.0/css/bundle");
sharedStyleBundle
.Include("~/Content/Template/font-awesome-4.1.0/css/font-awesome.css");
bundles.Add(sharedStyleBundle);
...
}
It seems to be important, that the key for the bundle has the same structure as the bundle path itself.