Logout works fine on Local Machine but not on Server

Question

I have the following code in my backing bean:
      ExternalContext external =
        FacesContext.getCurrentInstance().getExternalContext();
      HttpSession session = (HttpSession) external.getSession(false);
      session.invalidate();
     // redirect using response because logout is a HTML page
      HttpServletResponse response =
        (HttpServletResponse) external.getResponse();
      response.sendRedirect("../logout.html");The problem is that this works fine on my local machine http://localhost:8888/my-context-root
but on the Server clicking on the Logout link gives Page cannot be displayed.
The protocol is https://ip-address:port/my-context-root and on the local machine it's http
Is it the https thats causing the problem ?
I also tried using:
external.redirect("../logout.html"); but this also didn't help.

Answer 1

The URL for Login is
https://ip address:port/my-context-root/restricted/home.facesWhen the logout link is clicked the same URL is rendered.
Backing bean is
public class HomeBackingBean
  public String logout()
    try
      ExternalContext external =
        FacesContext.getCurrentInstance().getExternalContext();
      HttpSession session = (HttpSession) external.getSession(false);
      session.invalidate();
      //FacesContext.getCurrentInstance().responseComplete(); 
      Utility.logDebug("Session invalidated, trying to redirect to logout.html");
      // redirect using response because logout is a HTML page
      HttpServletResponse response =
        (HttpServletResponse) external.getResponse();
     response.sendRedirect("../logout.html");
    catch (IOException ioEx)
      Utility.logDebug("Failed to logout due to IOException");
    return null;
}The exit.jsp is :
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://myfaces.apache.org/trinidad" prefix="tr"%>
<h:form>
    <tr:commandLink styleClass="logout" text="Logout"
                    action="#{homeBean.logout}"/>
</h:form>The server log says:
07/31 23:42:19 DEBUG [com.eds.send.common.Utility] Session invalidated, trying to redirect to logout.html
07/31 23:42:19 DEBUG [com.sun.faces.application.NavigationHandlerImpl] No navigation rule found for outcome nulland viewId /r
estricted/home.faces Explicitly remain on the current view
07/31 23:42:19 DEBUG [com.sun.faces.lifecycle.InvokeApplicationPhase] Exiting InvokeApplicationsPhase
07/31 23:42:19 DEBUG [com.sun.faces.el.ValueBindingImpl] getValue(ref=restricted$home)
07/31 23:42:19 DEBUG [com.sun.faces.application.ApplicationImpl] Couldn't find a factory for restricted$home
07/31 23:42:19 DEBUG [com.sun.faces.el.VariableResolverImpl] resolveVariable: Resolved variable:null
07/31 23:42:19 DEBUG [com.sun.faces.el.ValueBindingImpl] getValue Result:null
07/31 23:42:19 DEBUG [com.sun.faces.el.ValueBindingImpl] getValue(ref=restricted$home)