Timer stops if you close the browser tab and reopen it again unlike other timer apps#13

Hi! I really enjoy this timer app. Unfortunately if you close the browser page where the timer is active and reopen it again, the timer is not running anymore, unlike other timer apps that I tested that keep running on that page if i reopen that page again. This is especially useful if I need to see other pages and come back or if the browser crashes and I have to reload everything again / power outage and browsers closes Maybe you can add this functionality so it can keep the timer running on the page even if you close the tab and reopen it again. Thank you!