diff --git a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidgetController.java b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidgetController.java
index fc7e28c..fdd5c59 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidgetController.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidgetController.java
@@ -20,7 +20,7 @@ import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ShowMessage
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ShowMessageEventHandler;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.TableRangeViewChangedEvent;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.TableRangeViewChangedEventHandler;
-import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.CkanFramePanel;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.CkanInternalFramePanel;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.ContentModeratorToolbar;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.HomeView;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.MainTabPanel;
@@ -109,7 +109,7 @@ public class CkanContentModeratorWidgetController {
 
 					for (T t : items) {
 						CatalogueDataset clickedDataset = (CatalogueDataset) t;
-						CkanFramePanel cfp = new CkanFramePanel(eventBus);
+						CkanInternalFramePanel cfp = new CkanInternalFramePanel(eventBus);
 						cfp.instanceFrame(clickedDataset.getUrl());
 						mainTabPanel.addTab(clickedDataset.getTitle(), cfp);
 
diff --git a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanFramePanel.java b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanInternalFramePanel.java
similarity index 79%
rename from src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanFramePanel.java
rename to src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanInternalFramePanel.java
index d757f36..60ba450 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanFramePanel.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/CkanInternalFramePanel.java
@@ -21,16 +21,15 @@ import com.google.gwt.user.client.ui.Image;
 import com.google.gwt.user.client.ui.NamedFrame;
 
 /**
- * The Class CkanFramePanel.
+ * The Class CkanInternalFramePanel.
  *
  * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
  * 
- * Jun 23, 2021
+ *         Feb 25, 2022
  */
-public class CkanFramePanel extends FlowPanel{
+public class CkanInternalFramePanel extends FlowPanel {
 
 	private NamedFrame frame;
-	//private static final String FRAME_NAME = "ckan-content-frame";
 	private HandlerManager eventBus;
 	private Image loading = new Image(ContentModeratorWidgetResources.ICONS.loading());
 	private String messageToSend;
@@ -41,23 +40,20 @@ public class CkanFramePanel extends FlowPanel{
 	 *
 	 * @param eventBus the event bus
 	 */
-	public CkanFramePanel(HandlerManager eventBus) {
+	public CkanInternalFramePanel(HandlerManager eventBus) {
 		this.eventBus = eventBus;
 		addLoading();
 	}
 
-
 	/**
 	 * Prints the.
 	 *
 	 * @param msg the msg
 	 */
 	private static native void print(String msg)/*-{
-	console.log(msg);
+		console.log(msg);
 	}-*/;
 
-
-
 	/**
 	 * Instance frame.
 	 *
@@ -65,34 +61,24 @@ public class CkanFramePanel extends FlowPanel{
 	 * @return the frame
 	 */
 	public Frame instanceFrame(String datasetURL) {
-		GWT.log("Instancing new IFRAME with uri: "+datasetURL);
-		try{
-			if(frame != null)
-				remove(frame);
-		}catch(Exception e){
-			print("Error " + e);
-		}
-
+		GWT.log("Instancing new IFRAME with uri: " + datasetURL);
 		addLoading();
 		String urlEncoded = URL.encode(datasetURL);
 		GWT.log("Encoded url for instanciating frame is " + urlEncoded);
-		iFrameRandomName = Random.nextInt() + "dataset-iframe"+Random.nextInt();
+		iFrameRandomName = Random.nextInt() + "dataset-iframe" + Random.nextInt();
 		frame = new NamedFrame(iFrameRandomName);
 		frame.setUrl(urlEncoded);
 
 		frame.getElement().setId(iFrameRandomName);
 		frame.setWidth("100%");
 		frame.setHeight("580px");
-		//		frame.setHeight("100%");
-		//		frame.getElement().getStyle().setOverflow(Overflow.HIDDEN);
-		//		frame.getElement().setAttribute("scrolling", "no");
 		frame.getElement().getStyle().setBorderWidth(0, Unit.PX);
 		frame.addLoadHandler(new LoadHandler() {
 
 			@Override
 			public void onLoad(LoadEvent arg0) {
 
-				CkanFramePanel.this.remove(loading);
+				CkanInternalFramePanel.this.remove(loading);
 				eventBus.fireEvent(new IFrameInstanciedEvent(frame, OPERATION.ONLOAD));
 			}
 		});
@@ -114,7 +100,7 @@ public class CkanFramePanel extends FlowPanel{
 	/**
 	 * add loading image.
 	 */
-	private void addLoading(){
+	private void addLoading() {
 		this.add(loading);
 		loading.getElement().getStyle().setProperty("margin", "auto");
 		loading.getElement().getStyle().setDisplay(Display.BLOCK);
diff --git a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/MainTabPanel.java b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/MainTabPanel.java
index c6dd586..cbdce73 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/MainTabPanel.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/MainTabPanel.java
@@ -78,9 +78,9 @@ public class MainTabPanel extends Composite {
 	public Tab addTab(String heading, Widget w) {
 		final Tab tab = new Tab();
 
-		if (w instanceof CkanFramePanel) {
+		if (w instanceof CkanInternalFramePanel) {
 			tab.setCustomIconStyle("icon-rotate-right icon-spin");
-			CkanFramePanel ckanFramePanel = (CkanFramePanel) w;
+			CkanInternalFramePanel ckanFramePanel = (CkanInternalFramePanel) w;
 			ckanFramePanel.getFrame().addLoadHandler(new LoadHandler() {
 
 				@Override