FIX: Use a cookie to bypass the anon cache

lib/middleware/anonymous_cache.rb

@@ -64,8 +64,13 @@ module Middleware
         CurrentUser.has_auth_cookie?(@env)
       end
 
+      def no_cache_bypass
+        request = Rack::Request.new(@env)
+        request.cookies['_bypass_cache'].nil?
+      end
+
       def cacheable?
-        !!(!has_auth_cookie? && get?)
+        !!(!has_auth_cookie? && get? && no_cache_bypass)
       end
 
       def cached