SAP PORTAL Fiori Framework - Dynamic Tile error

Dear Guru,

I use the Fiori Framework Page in SAP Portal, but if I add the service URL property on a fiori iview a receive the following error:

"Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://*************:55500' is therefore not allowed access. The response had HTTP status code 401."

My SAP Portal and the SAP Fiori Application are under different domain.

There is a way to fix this problem?

Thanks

Massimo