diff --git a/atlas/templates/atlas/viewer.html b/atlas/templates/atlas/viewer.html
index 126f942b..5a998fce 100644
--- a/atlas/templates/atlas/viewer.html
+++ b/atlas/templates/atlas/viewer.html
@@ -18,7 +18,7 @@
 <body>
     <p>Awating load request</p>
     This page will display series when loaded from other pages.
-    <iframe id="viewer" style="width: 100%; height: 100%; border: none; padding: 0px;" src="https://www.penracourses.org.uk/atlas/collection/18/viva"></iframe>
+    <iframe id="viewer" style="width: 100%; height: 100%; border: none; padding: 0px;" ></iframe>
 
     <script type="text/javascript">
         var win2 = false;
@@ -31,7 +31,7 @@
                 console.log("message received");
                 console.log(event);
                 if (event.data.type == "open") {
-                    document.getElementById("viewer").src = event.url;
+                    document.getElementById("viewer").src = event.data.url;
                 }
             };
         });
