Doesn't seem to work in chrome/mac?

[lu3do]

Whatever I do (switching to other tabs, windows, programs or minimize the current window) it keeps counting up the seconds the page is visible for, It never detects that i'm leaving the page.

[ai]

Honestly, right now without vendor prefixes it is better to use standard browser API directly without any syntax sugar.

[ai]

windows, programs or minimize the current window

BTW, Page Visibility API works only with browser tab switching. Changing window focus on even lock OS will not trigger hide.