update

node/message.js

@@ -742,7 +742,10 @@ us.updatecscl = function (messageInfo, classId) {
         var i, j, _is;
         var _obj = us.cscl[classId].content;
         console.log("====================a=================")
-        console.log(us.cscl[classId])
+        console.log(messageInfo)
+        console.log(_obj)
+        console.log(_obj.backgroundUrl)
+        console.log("====================b=================")
         _obj.backgroundUrl = messageInfo.backgroundUrl;
         _obj.edges = _obj.edges || [];
         _obj.nodes = _obj.nodes || [];