Index: lams_common/src/java/org/lamsfoundation/lams/integration/security/SsoHandler.java
===================================================================
diff -u -r0ce9905dea8fbef2c94b68d69fae13d71512c55d -r57fd95981e299065f2c8c90629420058ea0d88e9
--- lams_common/src/java/org/lamsfoundation/lams/integration/security/SsoHandler.java	(.../SsoHandler.java)	(revision 0ce9905dea8fbef2c94b68d69fae13d71512c55d)
+++ lams_common/src/java/org/lamsfoundation/lams/integration/security/SsoHandler.java	(.../SsoHandler.java)	(revision 57fd95981e299065f2c8c90629420058ea0d88e9)
@@ -101,7 +101,7 @@
 			// do the logging in UniversalLoginModule or cache
 			handler.handleRequest(exchange);
 
-			if (login != null && login.equals(request.getRemoteUser())) {
+			if (!StringUtils.isBlank(login) && login.equals(request.getRemoteUser())) {
 			    session.setAttribute(AttributeNames.USER, userDTO);
 			}