Refreshes the page every few seconds while something runs, waiting for
each refresh to land before scheduling the next. A refresh on a timer
cancels one still in flight, so when the page takes longer to render
than the interval (the board against a remote database), no refresh ever
lands and the page never updates.
Refreshes the page every few seconds while something runs, waiting for each refresh to land before scheduling the next. A refresh on a timer cancels one still in flight, so when the page takes longer to render than the interval (the board against a remote database), no refresh ever lands and the page never updates.