Enforcing Youtube.com Restricted View

[NetTas]

I need to force Restricted Mode = On for YouTube - effectively same as Enable SafeSeach=On. 

This is too ensure that Internet Users in an Educational Environment can not change the Restricted Mode of YouTube from On to Off

There was a rule-set that once worked within MWG:

IF

	URL.Host    matches    *youtube.com  AND    URL.HasParameter ("search_query")    equals    true
	Then

     Set URL = URL + "&safe=active"

But this appears to not work anymore - effectively adding "&safe=active" to the YouTube request does not have the desired affect. I have called MWG Support concerning this issue, but they only provided KB references to recommended Rule-Sets that no longer work.

Any comments / suggestions would be appreciated