Why does the Astaro (v7.305 in this case) block only site WITH "www" before the address and not without?

Under Web Security >> HTTP >> "Additional URLs/Site's to Block" I have:

www,example,com

(when a user goes to www,example,com it works and successfully blocks the site. However, if a user goes to http;//example,com it allows the traffic --- ???)

Is this a bug / possible feature-request?

Isn't there a way to tell Content Filter that http;//example,com is the same as www,example,com ???


Thanks!

(I've used commas instead of periods as the Astaro message board converts the addresses to links automatically)