lib/middleware.rb in pakyow-assets-0.1.1 vs lib/middleware.rb in pakyow-assets-0.1.2

@@ -1,5 +1,7 @@
+require 'time'
+
 module Pakyow
   module Assets
     class Middleware
       def initialize(app)
         @app = app
@@ -19,13 +21,15 @@
 
             headers = {
               'Content-Type' => Rack::Mime.mime_type(File.extname(path))
             }
 
-            if Pakyow::Config.assets.cache
+            if Pakyow::Config.assets.cache && Pakyow::Assets.fingerprinted?(File.extname(path))
               mtime = File.mtime(path)
               headers['Age'] = (Time.now - mtime).to_i
               headers['Cache-Control'] = 'public, max-age=31536000'
+              headers['Vary'] = 'Accept-Encoding'
+              headers['Last-Modified'] = mtime.httpdate
             end
 
             [200, headers, File.open(path)]
           end
         else