I followed the ASPX tutorial
and added a custom CSS style (assigned it to the site, copied files into App_Themes/<CSSCodeName>/Images.
CSS images are referenced this way:
where "KplusDesktop" is the code name of my CSS style.
Unfortunately I don't see an image in the browser. I doublechecked everything (path's casing is right) but can't find the error. Trying to access the image directly from the browser (path taken from Firebug) results in a 401.1 ("Not authorized: Access denied due invalid login").
From the error message I would guess the problem is related to IIS or ASP.NET configuration, but I don't have a clue where to start. Also I've read that App_Themes folder is a special folder in IIS/ASP.NET, so maybe the error is normal. My machine is a default setup (Server 2012, IIS 8, .NET 4.5) and the site is an almost unmodified new site.
Anyone has a good advice?
Thanks in advance