I\'m using Visual Studio 2012 with Update 2 and IIS Express.
When I add a record to the staticContent section, all other static content (.js, .css, .jpg, etc) retur
Behavior of system.webServer/staticContent/mimeMap element has changed in IIS 7.0 and apparently one has to list all types explicitly to have them returned properly.
Here is a description from IIS configuration documentation:
Note: IIS 7 will not return file types that are not added to the element or that have mappings in the element by default. This behavior prevents unauthorized access to files that do not have mappings in the IIS 7 configuration settings.