You have multiple instances of this website open. Please close other tabs or windows to continue using this application.
This demo shows how to detect and manage duplicate tabs of the same website.
Try opening this page in another tab or window to see the duplicate detection in action.
This content is only visible when this tab is the active tab. If duplicate tabs are detected, this content will be hidden in non-primary tabs.
In a real application, this would contain your main application functionality that should only be accessible in one tab at a time.