Varnish caching for artist data and lastfm suggest

app/assets/javascripts/search.coffee

@@ -64,4 +64,4 @@ $('#search-form').live 'submit', ->
   false
 $('.data.artist').live 'click', ->
   _search.loadArtistData $(this).html()
-  false
+  false

app/controllers/artist_controller.rb

@@ -32,6 +32,7 @@ class ArtistController < ApplicationController
       return render json: { status: 'fail', html: render_compact_partial(:fail) }
     end
     
+    response.headers['Cache-Control'] = 'public, max-age='+1.week.seconds.to_s
     render json: {
       status: @artist.status_str,
       artist: @artist,

app/controllers/last_fm_controller.rb

@@ -86,6 +86,8 @@ class LastFmController < ApplicationController
     autocomplete["response"]["docs"].each do |doc|
       suggestions << doc["artist"] unless suggestions.include?(doc["artist"]) or doc["artist"].nil? or doc['restype'] != 6
     end
+
+    response.headers['Cache-Control'] = 'public, max-age='+1.week.seconds.to_s
     render :json => {
       :query => params[:query],
       :suggestions => suggestions.take(5)