Include a bang expression in search queries to disable or enable safe search
At the moment if you want to use privacy pass for search queries you cannot enable/disable safe search. It has been explained that encoding the safe search preference or other user preferences such as language compromises the privacy attributes of the privacy pass. All search settings are left at default values as a consequence, including safe search being enabled. This is all reasonable.
As a means of enabling the control of safe search while using privacy pass create a search query bang for disabling/enabling safe search. This allows a privacy pass user to conditionally disable safe search.
This change also allows users to situationally enable safe search when they otherwise would have the feature disabled.
