i have requirement to open CRM2016 Entity or view URL in IFRME in static HTML . It throwing "Access Denied" error while opening CRM URL in IFRAME . Any idea how to resolve this error ?

http://myorg.crm.dynamics.com/main.aspx?etn=contact&pagetype=entityrecord&id=%7B81330924-802A-4B0D-A900-34FD9D790829%7D