from customer: Ido Ran
I've come acros a problem when using the great new ASP.NET bundle feature.
There is a problem when using urls such as reference to background images inside CSS that is bundled because the virtual path to the bundle is where the images are searched for but they are not always there.
Check out this StackOverflow questions which describe both the problem and the solution.
The problem is that the bundle feature does not make it obvious when using it.