I have installed new R12.7 SP01 Policy server on RHEL 7.x. I have installed same WAM UI as well. But when I click on Rest API. I am getting error Can't read swagger JSON from https://xxxxxxx.***.***8443/ca/api/sso/services/v1/api-doc/restapiservices.json
I tried the same thing on R12.7 and this is working fine.