BUGFIX: JS error when login_required is enabled

app/models/site.rb

@@ -58,16 +58,14 @@ class Site
   def self.cached_json(guardian)
 
     if guardian.anonymous? && SiteSetting.login_required
-      return {}.to_json
+      return {
+        periods: TopTopic.periods.map(&:to_s),
+        filters: Discourse.filters.map(&:to_s),
+      }.to_json
     end
 
-    # Sam: bumping this way down, SiteSerializer will serialize post actions as well,
-    #   On my local this was not being flushed as post actions types changed, it turn this
-    #   broke local.
     site = Site.new(guardian)
-    #Discourse.cache.fetch(site.cache_key, family: "site", expires_in: 1.minute) do
     MultiJson.dump(SiteSerializer.new(site, root: false))
-    #end
   end
 
   def self.invalidate_cache