Index: lams_bb_integration/web/modules/preview.jsp
===================================================================
diff -u -ra6321ec69f3de68d5f6cbdc44f20edf5ca42e6f8 -r5e72ecb5823ebde2df3845733e9d06723d8252c6
--- lams_bb_integration/web/modules/preview.jsp	(.../preview.jsp)	(revision a6321ec69f3de68d5f6cbdc44f20edf5ca42e6f8)
+++ lams_bb_integration/web/modules/preview.jsp	(.../preview.jsp)	(revision 5e72ecb5823ebde2df3845733e9d06723d8252c6)
@@ -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);
 	%>