title: Preventing Multiple Tabs with same Session state in Oracle APEX 5
body: <p>Iam using Oracle APEX 5 Universal theme.
  If user copies a page URL along with session and pastes it in new tab ,  the session should expire.
  i.e. Multiple tabs with same session should be restricted, at a time only one tab for that session should be valid.
  For example: If user is in home page(page 1) , if they are copying the same URL of home page(page1) along with session id and pasting it in new tab, the session should expire.
  Restriction of opening multiple tabs for same session.</p>
  
  <p>Can anyone suggest some methods to restrict this?
  Thanks.</p>