Safety Minder not blocking specfic sites

I have blocked facebook.com from my son. When he goes to http://www.facebook.com it is blocked but when he adds the s to make the url https://www.facebook.com he is then allowed. This works within multiple pages at any site that is blocked is there any fix??

 

 

Running Norton Safety Minder Version 1.2.0.39

We mainly use Google Chrome Version 3.0.195.38

 

But it does block it correctly on IE 8.0.6001

 

Any one know how to get this working in Chrome correctly?????