[using FortiGate 100D v5.02]
I setup the WebFilter to block some categories, like Social Networking.
If a user tries to access using HTTP it works fine, blocking the access. But if the user tries using HTTPS, the access is allowed.
I read about the necessity to use SSL Inspection, but if I activate it, i get some errors about certificate.
Then, I found this option inside UTM >> WebFilter:

What does this option ?
With this, I could block URLs access without using HTTPS Inspection ??
In my site, is not necessary Inspection under SSL Content, I just would like to block the access to websites via HTTPS...