diff --git a/app/controllers/graduation_tasks_controller.rb b/app/controllers/graduation_tasks_controller.rb
index 138be4960..ac6cb7eae 100644
--- a/app/controllers/graduation_tasks_controller.rb
+++ b/app/controllers/graduation_tasks_controller.rb
@@ -1,11 +1,11 @@
 class GraduationTasksController < ApplicationController
   before_action :require_login, :check_auth, except: [:index]
   before_action :find_course, except: [:edit, :update, :settings, :update_settings, :tasks_list, :show, :show_comment]
-  before_action :find_task, only: [:edit, :update, :settings, :update_settings, :tasks_list, :show, :show_comment]
+  before_action :find_task, only: [:edit, :update, :settings, :update_settings, :tasks_list, :show, :show_comment, :cross_comment_setting]
   before_action :user_course_identity
   before_action :task_publish, only: [:show, :show_comment, :tasks_list, :settings]
   before_action :teacher_allowed, only: [:new, :create, :edit, :update, :set_public,:multi_destroy, :publish_task, :end_task,
-                                         :update_settings, :add_to_bank]
+                                         :update_settings, :add_to_bank, :cross_comment_setting]
   before_action :require_id_params, only: [:set_public ,:multi_destroy, :publish_task, :end_task, :add_to_bank]
   before_action :valid_params, only: [:update_settings]
   include ExportHelper
@@ -498,7 +498,7 @@ class GraduationTasksController < ApplicationController
   end
 
   def cross_comment_setting
-
+    @comment_status
   end
 
   private
diff --git a/config/routes.rb b/config/routes.rb
index c2da5fc63..34e9947aa 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -536,6 +536,7 @@ Rails.application.routes.draw do
           post 'update_settings'
           get 'tasks_list'
           get :show_comment
+          get :cross_comment_setting
         end
 
         collection do