app/controllers/devise/unlocks_controller.rb in devise-2.2.3 vs app/controllers/devise/unlocks_controller.rb in devise-2.2.4

@@ -31,14 +31,14 @@
 
   protected
 
     # The path used after sending unlock password instructions
     def after_sending_unlock_instructions_path_for(resource)
-      new_session_path(resource)
+      new_session_path(resource) if is_navigational_format?
     end
 
     # The path used after unlocking the resource
     def after_unlock_path_for(resource)
-      new_session_path(resource)
+      new_session_path(resource)  if is_navigational_format?
     end
 
 end