Ensure log is flushed and tailed on failures.

1 files changed, 3 insertions, 4 deletions

diff --git a/actionpack/lib/action_dispatch/middleware/callbacks.rb b/actionpack/lib/action_dispatch/middleware/callbacks.rb
index 8098933e01..5ec406e134 100644
--- a/actionpack/lib/action_dispatch/middleware/callbacks.rb
+++ b/actionpack/lib/action_dispatch/middleware/callbacks.rb
@@ -43,11 +43,10 @@ module ActionDispatch
     def call(env)
       run_callbacks(:call) do
         run_callbacks(:prepare) if @prepare_each_request
-
-        ActiveSupport::Notifications.instrument "action_dispatch.callback" do
-          @app.call(env)
-        end
+        @app.call(env)
       end
+    ensure
+      ActiveSupport::Notifications.instrument "action_dispatch.callback"
     end
   end
 end