1 files changed, 2 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
index 53a025a975..226a688fe2 100644
--- a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
+++ b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
@@ -44,6 +44,7 @@ module ActionDispatch
     end
 
     def call(env)
+      request = ActionDispatch::Request.new env
       _, headers, body = response = @app.call(env)
 
       if headers['X-Cascade'] == 'pass'
@@ -53,7 +54,7 @@ module ActionDispatch
 
       response
     rescue Exception => exception
-      raise exception if env['action_dispatch.show_exceptions'] == false
+      raise exception unless request.show_exceptions?
       render_exception(env, exception)
     end