Index: lams_monitoring/web/includes/javascript/monitorLesson.js
===================================================================
RCS file: /usr/local/cvsroot/lams_monitoring/web/includes/javascript/monitorLesson.js,v
diff -u -r1.44.2.54 -r1.44.2.55
--- lams_monitoring/web/includes/javascript/monitorLesson.js	9 Dec 2016 17:56:39 -0000	1.44.2.54
+++ lams_monitoring/web/includes/javascript/monitorLesson.js	9 Dec 2016 18:24:55 -0000	1.44.2.55
@@ -1819,7 +1819,10 @@
  * Tells parent document to close this Monitor dialog.
  */
 function closeMonitorLessonDialog(refresh) {
-	window.parent.closeDialog('dialogMonitorLesson' + lessonId, refresh);
+	//check method is available in order to avoid JS errors (as it's not available from integrations)
+	if (typeof window.parent.closeDialog === "function") {
+		window.parent.closeDialog('dialogMonitorLesson' + lessonId, refresh);
+	}
 }
 
 /**