1 files changed, 13 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/rescue.rb b/actionpack/lib/action_controller/metal/rescue.rb
index eb037aa1b0..68cc9a9c9b 100644
--- a/actionpack/lib/action_controller/metal/rescue.rb
+++ b/actionpack/lib/action_controller/metal/rescue.rb
@@ -1,4 +1,7 @@
 module ActionController #:nodoc:
+  # This module is responsible to provide `rescue_from` helpers
+  # to controllers and configure when detailed exceptions must be
+  # shown.
   module Rescue
     extend ActiveSupport::Concern
     include ActiveSupport::Rescuable
@@ -12,10 +15,20 @@ module ActionController #:nodoc:
       super(exception)
     end
 
+    # Override this method if you want to customize when detailed
+    # exceptions must be shown. This method is only called when
+    # consider_all_requests_local is false. By default, it returns
+    # false, but someone may set it to `request.local?` so local
+    # requests in production still shows the detailed exception pages.
+    def show_detailed_exceptions?
+      false
+    end
+
     private
       def process_action(*args)
         super
       rescue Exception => exception
+        request.env['action_dispatch.show_detailed_exceptions'] ||= show_detailed_exceptions?
         rescue_with_handler(exception) || raise(exception)
       end
   end