From a7ab2dde23059e8d9c26386b5202adf69da3f608 Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Sat, 20 Jul 2019 23:17:20 +0800
Subject: [PATCH] =?UTF-8?q?=E9=99=84=E4=BB=B6=E4=B8=8B=E8=BD=BD?=
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---
 app/controllers/attachments_controller.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 571374468..2efe1df09 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -14,7 +14,7 @@ class AttachmentsController < ApplicationController
       update_downloads(@file)
       redirect_to @file.cloud_url and return
     end
-    send_file absolute_path(local_path(@file)), type: @file.content_type
+    send_file absolute_path(local_path(@file)), type: @file.content_type.presence || 'application/octet-stream'
 
     update_downloads(@file)
   end