update

src/components/pages/synergyCourse/addCourse.vue

@@ -5149,7 +5149,7 @@ export default {
               window.parent.postMessage(
                 {
                   tools: "opencCscl",
-                  cid: cid,
+                  cid: this.cid,
                   gid: groupCid,
                 },
                 "*"