I have a basic crossdomain.xml in my wwwroot folder with my flex apps and everything is just dandy till I try to use an app with a service that requires a password. When I put in the password the service I get "Error #2048". I dont know why everything works with no security but fails with security. If I un-secure that service the app works without error. The chrome developer tools show an error with it tries to get the crossdomain.xml. Chrome can open the xml url. It doesnt matter if you put in the correct password, the error is the same.