diff --git a/public/react/public/js/applications.js b/public/react/public/js/applications.js
index ad46a5aa0..e99bf61cd 100644
--- a/public/react/public/js/applications.js
+++ b/public/react/public/js/applications.js
@@ -11267,7 +11267,7 @@ Copyright © 2018 Basecamp, LLC
       type: "GET",
       dataType: "script",
       cache: true,
-      async: false,
+      async: true,
       global: false,
 
       // Only evaluate the response if it is successful (gh-4126)
diff --git a/public/react/src/AppConfig.js b/public/react/src/AppConfig.js
index a3efafdb9..afed0fa9d 100644
--- a/public/react/src/AppConfig.js
+++ b/public/react/src/AppConfig.js
@@ -90,7 +90,7 @@ function railsgettimes(proxy) {
 
   if (timestamp && checkSubmitFlg === false) {
     $.ajax({
-      url: proxy, async: false, success: function (data) {
+      url: proxy, async: true, success: function (data) {
         if (data.status === 0) {
           timestamp = data.message;
           setpostcookie();
@@ -103,7 +103,7 @@ function railsgettimes(proxy) {
     }, 2000);
   } else if (checkSubmitFlg === false) {
     $.ajax({
-      url: proxy, async: false, success: function (data) {
+      url: proxy, async: true, success: function (data) {
         if (data.status === 0) {
           timestamp = data.message;
           setpostcookie();
diff --git a/public/react/src/modules/courses/coursesHome/CoursesHomeCard.js b/public/react/src/modules/courses/coursesHome/CoursesHomeCard.js
index b9925c051..c021c07e7 100644
--- a/public/react/src/modules/courses/coursesHome/CoursesHomeCard.js
+++ b/public/react/src/modules/courses/coursesHome/CoursesHomeCard.js
@@ -93,7 +93,7 @@ class CoursesHomeCard extends Component{
                                  <span className="color-grey-98">{item.school}</span>
                               </Tooltip>
                               </p>
-{/* 
+
                               <div style={{height:30,overflow: 'hidden',textOverflow:'ellipsis',whiteSpace: 'nowrap'}}>
                               {item.teacher_users.length===0?'':
                                <span className="color-grey-98" style={{height:30,display:'flex'}}>协作老师：
@@ -105,7 +105,7 @@ class CoursesHomeCard extends Component{
                                 }
                              </span>
                              }
-                              </div> */}
+                              </div>
                            
                              
                           </div>
diff --git a/public/react/src/modules/user/usersInfo/InfosCourse.js b/public/react/src/modules/user/usersInfo/InfosCourse.js
index d2ebd70cf..4913588b2 100644
--- a/public/react/src/modules/user/usersInfo/InfosCourse.js
+++ b/public/react/src/modules/user/usersInfo/InfosCourse.js
@@ -346,7 +346,7 @@ class InfosCourse extends Component{
                     <span><img alt="用户" className="radius mt15" height="50" src={getImageUrl('images/'+`${item.teacher && item.teacher.avatar_url}`)} width="50"/></span>
                     <p className="font-14 mt10 task-hide"><span>{item.teacher && item.teacher.real_name}</span></p>
                     <p className="font-16 mb15 task-hide mt10"><span className="color-grey-98">{item&&item.school}</span></p>
-                    {/* <div style={{height:20,overflow: 'hidden',textOverflow:'ellipsis',whiteSpace: 'nowrap',marginBottom:5}}>
+                    <div style={{height:20,overflow: 'hidden',textOverflow:'ellipsis',whiteSpace: 'nowrap',marginBottom:5}}>
                               {item.teacher_users.length===0?'':
                                <span className="color-grey-98" style={{height:30,display:'flex'}}>协作老师：
                                 {item.teacher_users.map((iem,idx)=>{
@@ -357,7 +357,7 @@ class InfosCourse extends Component{
                                 }
                              </span>
                              }
-                              </div> */}
+                              </div>
 
                   </div>
                   <div className="edu-txt-center course-bottom">