Index: lams_bb_integration/web/modules/preview.jsp
===================================================================
diff -u -r6e9eb68ce0a5a3982f117119a09beb9e4425326e -r355d2371b4fbb0a4f1da03c97e5328524d0751e2
--- lams_bb_integration/web/modules/preview.jsp	(.../preview.jsp)	(revision 6e9eb68ce0a5a3982f117119a09beb9e4425326e)
+++ lams_bb_integration/web/modules/preview.jsp	(.../preview.jsp)	(revision 355d2371b4fbb0a4f1da03c97e5328524d0751e2)
@@ -65,7 +65,7 @@
         }
         
         //redirect to preview lesson
-        String previewUrl = LamsSecurityUtil.generateRequestURL(ctx, "learnerStrictAuth", lsId);
+        String previewUrl = LamsSecurityUtil.generateRequestURL(ctx, "learnerStrictAuth", "" + lsId);
         response.sendRedirect(previewUrl);
 	%>