diff --git a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
index f9d4235..00aca28 100644
--- a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
+++ b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
@@ -97,10 +97,6 @@ public class GCubeCkanDataCatalogPanel extends BaseViewTemplate {
 						instanceCkanFrame(ckan.buildURI());
 						GCubeCkanDataCatalogPanel.this.rootPanel.remove(loading);
 
-						if(ckan.isOutsideFromPortal())
-							hideHeaderSection();
-
-
 						// now perform the other requests
 						GCubeCkanDataCatalog.service.outsidePortal(new AsyncCallback<Boolean>() {
 
@@ -227,18 +223,6 @@ public class GCubeCkanDataCatalogPanel extends BaseViewTemplate {
 		listenForPostMessage();
 	}
 
-	private native void hideHeaderSection()  /*-{
-
-		var e = $wnd.document.getElementByTagName('<header>');
-		console.log('header : '+e);
-		if(e){
-			console.log('header found');
-			e.style.visibility = 'hidden';
-		}
-
-	}-*/;
-
-
 	public static String getLatestSelectedProductIdentifier(){
 		return latestSelectedProductIdentifier;
 	}
diff --git a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/server/GcubeCkanDataCatalogServiceImpl.java b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/server/GcubeCkanDataCatalogServiceImpl.java
index a02b41d..7ccc966 100644
--- a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/server/GcubeCkanDataCatalogServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/server/GcubeCkanDataCatalogServiceImpl.java
@@ -317,6 +317,10 @@ public class GcubeCkanDataCatalogServiceImpl extends RemoteServiceServlet implem
 	 */
 	@Override
 	public String logoutFromCkanURL() {
+		
+		// check if the portlet is accessed from outside the portal
+		if(outsidePortal())
+			return null;
 
 		HttpSession httpSession = this.getThreadLocalRequest().getSession();
 		String username = SessionUtil.getCurrentUser(getThreadLocalRequest()).getUsername();