Add more event handlers for page leave in fusion-plugin-universal-events #768
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visibilitychange
event does not work well on some browsers (link), so add event handlers forpagehide
and
beforeunload
events too. Do not add event handler forunload
event because on some browsersit disables
back/forward-caching
(link).Add event listener for
visibilitychange
ondocument
asEventTarget
instead ofwindow
becauseit works better on some old versions of Safari (link).
Interesting article about this here.