From 829395b491cf1d2f097abf76b2e0cd00ea4472bf Mon Sep 17 00:00:00 2001
From: Karson <karsonzhang@163.com>
Date: Wed, 9 Aug 2017 18:22:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=B8=8A=E4=BC=A0=E6=97=B6?=
 =?UTF-8?q?=E4=B8=8D=E8=BF=94=E5=9B=9EAJAX=E6=A0=BC=E5=BC=8F=E4=BF=A1?=
 =?UTF-8?q?=E6=81=AF?=
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---
 application/admin/controller/Ajax.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/application/admin/controller/Ajax.php b/application/admin/controller/Ajax.php
index 0bf244ab..a102fd68 100644
--- a/application/admin/controller/Ajax.php
+++ b/application/admin/controller/Ajax.php
@@ -48,6 +48,7 @@ class Ajax extends Backend
      */
     public function upload()
     {
+        Config::set('default_return_type', 'json');
         $file = $this->request->file('file');
         if (empty($file))
         {