diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index dc73b0711..9dc85b580 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -1290,8 +1290,14 @@ class ExercisesController < ApplicationController
     if params[:export].present? && params[:export]
       normal_status(0,"正在下载中")
     else
-      set_export_cookies
-      render pdf: 'exercise_export/blank_exercise', filename: filename_, stylesheets: stylesheets, disposition: 'inline', type:"pdf_attachment.content_type"
+      respond_to do |format|
+        set_export_cookies
+        format.pdf do
+          render pdf: 'exercise_export/blank_exercise', filename: filename_, stylesheets: stylesheets, disposition: 'inline', type:"pdf_attachment.content_type",stream:false
+        end
+      end
+      # set_export_cookies
+      # render pdf: 'exercise_export/blank_exercise', filename: filename_, stylesheets: stylesheets, disposition: 'inline', type:"pdf_attachment.content_type",stream:false
     end
   end