On proxy version 7.x, there is a new layer called Access Policy and an upgrade from version 6.x would require this to be enabled manually on the Web VPM.
Release : 7.x
Component : Policy
The Content Security need to applied under the Web Visual Policy Manager.
Below are the steps to configure the Content Security Layer or policy.
1. Go to Configuration > Policy > Visual Policy Manager and then click on the
2. On the Web VPM, click on the "Launch VPM" button. I will open the Web VPM.
3. Then click on "Add Layer" > Click on Access Policy Layer > Then click on the "Add" button.
Then "Apply Policy".