2 files changed, 5 insertions, 2 deletions
diff --git a/actionpack/lib/sprockets/assets.rake b/actionpack/lib/sprockets/assets.rake
index 0531b1509b..9b2f3a3f94 100644
--- a/actionpack/lib/sprockets/assets.rake
+++ b/actionpack/lib/sprockets/assets.rake
@@ -9,6 +9,7 @@ namespace :assets do
       Kernel.exec $0, *ARGV
     else
       Rake::Task["environment"].invoke
+      Rake::Task["tmp:cache:clear"].invoke
 
       # Ensure that action view is loaded and the appropriate sprockets hooks get executed
       ActionView::Base
diff --git a/actionpack/lib/sprockets/railtie.rb b/actionpack/lib/sprockets/railtie.rb
index dc991636a1..f05d835554 100644
--- a/actionpack/lib/sprockets/railtie.rb
+++ b/actionpack/lib/sprockets/railtie.rb
@@ -67,8 +67,10 @@ module Sprockets
         end
       end
 
-      app.routes.prepend do
-        mount app.assets => config.assets.prefix
+      if config.assets.compile
+        app.routes.prepend do
+          mount app.assets => config.assets.prefix
+        end
       end
 
       if config.assets.digest