UNET crossdomain.xml policy file problem

Hello, I'm testing the new unity networking system. I managed to create some internet match using unity multiplayer services. But whenever i build my game and try to create/join from web player it says that
"Rejected because no crossdomain.xml policy file was found".
I know that this xml file should be in the root directory of the domain. Since im using unity's multiplayer service, i couldnt find where i should add the crossdomain.xml file.

Does anyone knows the...

UNET crossdomain.xml policy file problem