diff --git a/mod/scorm/player.js b/mod/scorm/player.js
index 84be2155226..bae92d8b8ce 100644
--- a/mod/scorm/player.js
+++ b/mod/scorm/player.js
@@ -23,6 +23,7 @@ function scorm_openpopup(url,name,options,width,height) {
     options += ",width="+width+",height="+height;
 
     windowobj = window.open(url,name,options);
+    windowobj.opener = null;
     if (!windowobj) {
         return;
     }
diff --git a/mod/scorm/view.js b/mod/scorm/view.js
index 77e3995e8fc..085f15f12fb 100644
--- a/mod/scorm/view.js
+++ b/mod/scorm/view.js
@@ -83,6 +83,7 @@ M.mod_scormform.init = function(Y) {
         winobj = window.open(launch_url,'Popup', poptions);
         this.target='Popup';
         scormredirect(winobj);
+        winobj.opener = null;
     }
     // Listen for view form submit and generate popup on user interaction.
     if (scormform) {
@@ -91,6 +92,7 @@ M.mod_scormform.init = function(Y) {
             winobj = window.open(launch_url, 'Popup', poptions);
             this.target='Popup';
             scormredirect(winobj);
+            winobj.opener = null;
             e.preventDefault();
         }, scormform);
     }