Merge branch 'release/customer-service2' into 'feature/merge-captcha'

sendTime undefined

判断sendTime是否存在

See merge request !35

@@ -728,11 +728,11 @@ function pageInit() {
         msgList = msgList.reverse();
         len = msgList.length;
 
-        if (endTime === msgList[0].sendTime) {
+        if (msgList[0] && endTime === msgList[0].sendTime) {
             hasMore = false;
         }
 
-        endTime = msgList[0].sendTime;
+        endTime = msgList[0] && msgList[0].sendTime;
 
         if (hasMore) {
             for (i = 0; i < len; i++) {