[xwiki-users] Configuration to restrict all activities including search on specific space?

Hi All, I dont the *Invitation* space visible for any user . Basically i want no user should be able to do any operation*( including should not be able search any page inside invitation space) *on invitation space . *What i tried for this* ** I tried blacklisting the invitation space with following code snippet in xwikivars.vm *#if ($hasAdmin || $isAdvancedUser) #set ($blacklistedSpaces = ['Invitation']) #else #set ($blacklistedSpaces = ['Import', 'Panels', 'Scheduler', 'Stats', 'XAppClasses', 'XAppSheets', 'XAppTemplates', 'XWiki', 'WatchCode', 'WatchSheets', 'XApp', 'WatchAdmin', 'Watch', 'ColorThemes', 'AnnotationCode','Invitation']) #end* what it does only is Invitation space is not visible on dasshboard. *But still i can do search for all pages inside invitation space and navigate to invitation space.* What i also tried is denying all rights on invitation space for all users. But still users can searc the pages inside invitation space. *Kindly let me know the configuration to restrict any activity(including search) on Invitation space.* Last option i can think of is delete the invitation space but i don't want to go this way keeping in mind it may be required in future. Thanks in advance