eliminate usage of localstorage to cache tag autocomplete results (fixes #3543)

app/controllers/artists_controller.rb

@@ -44,6 +44,7 @@ class ArtistsController < ApplicationController
       end
       format.json do
         render :json => @artists.to_json(:include => [:urls])
+        expires_in 7.days
       end
     end
   end
@@ -108,6 +109,7 @@ class ArtistsController < ApplicationController
       end
       format.json do
         render :json => @artists.to_json(:include => [:sorted_urls])
+        expires_in 7.days
       end
     end
   end

app/controllers/pools_controller.rb

@@ -22,6 +22,10 @@ class PoolsController < ApplicationController
       format.xml do
         render :xml => @pools.to_xml(:root => "pools")
       end
+      format.json do
+        render json: @pool.to_json
+        expires_in 7.days
+      end
     end
   end
 

app/controllers/sources_controller.rb

@@ -8,6 +8,7 @@ class SourcesController < ApplicationController
 
     respond_with(@source.to_h) do |format|
       format.xml { render xml: @source.to_h.to_xml(root: "source") }
+      format.json { render json: @source.to_h.to_json }
     end
   end
 

app/controllers/tags_controller.rb

@@ -19,6 +19,7 @@ class TagsController < ApplicationController
 
   def autocomplete
     @tags = Tag.names_matches_with_aliases(params[:search][:name_matches])
+    expires_in 7.days
 
     respond_with(@tags) do |format|
       format.xml do

app/controllers/users_controller.rb

@@ -27,6 +27,10 @@ class UsersController < ApplicationController
         format.xml do
           render :xml => @users.to_xml(:root => "users")
         end
+        format.json do
+          render json: @user.to_json
+          expires_in 7.days
+        end
       end
     end
   end

app/controllers/wiki_pages_controller.rb

@@ -29,6 +29,10 @@ class WikiPagesController < ApplicationController
       format.xml do
         render :xml => @wiki_pages.to_xml(:root => "wiki-pages")
       end
+      format.json do
+        render json: @wiki_pages.to_json
+        expires_in 7.days
+      end
     end
   end