diff --git a/.drone.yml b/.drone.yml
index 5a745da0..6895a496 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -40,7 +40,7 @@ pipeline:
       - cp -rf publish image/docker/webim/webim
       - echo 'build success'
     when:
-      branch: [ dev, online ]
+      branch: [ dev, release ]
 
 
   dockerize-latest:
@@ -80,7 +80,7 @@ pipeline:
     dockerfile: image/docker/webim/Dockerfile
     context: image/docker/webim/
     when:
-      branch: online
+      branch: release
 
   deploy-online:
     image: docker-registry-cn.easemob.com/kubernetes/im/webim-online:latest
@@ -91,7 +91,7 @@ pipeline:
     secrets: [ ssh_key, jumpserver_host, jumpserver_port, online_host ]
     debug: true
     when:
-      branch: online
+      branch: release
 
   rollback-online:
     image: docker-registry-cn.easemob.com/kubernetes/im/webim-rollback:latest
diff --git a/release.log b/release.log
new file mode 100644
index 00000000..009e668d
--- /dev/null
+++ b/release.log
@@ -0,0 +1 @@
+1.4.11
\ No newline at end of file
diff --git a/sdk/src/connection.js b/sdk/src/connection.js
index 9464cfcc..a08fb025 100755
--- a/sdk/src/connection.js
+++ b/sdk/src/connection.js
@@ -1670,7 +1670,7 @@ connection.prototype.handleMessage = function (msginfo) {
                         receiveMsg = decryptedStr;
                     }
                     var emojibody = _utils.parseTextMessage(receiveMsg, WebIM.Emoji);
-                    if (emojibody.isemoji) {
+                    if (emojibody && emojibody.isemoji) {
                         var msg = {
                             id: id
                             , type: chattype