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Re:Chrome will aggressively throttle background tabs by pmiller2 on Tuesday January 24, 2017 @11:38AM (#13472863)
That's less "backward compatible" than the suggestion to pop up a dialog on switching to the page, because the page needs to know to ask for the permission.

I'm not sure if that's a good thing or a bad thing. After all, backward compatibility is how we got the semantics of an alert() dialog stopping all JS execution.

Re:Chrome will aggressively throttle background tabs by rhizome on Tuesday January 24, 2017 @12:35PM (#13473490)
These days, due to my annoyance with pages reloading themselves when switching to a tab, I'm really not interested in packing more functionality into the whole tab switching mechanism. Like the back button, it should not be visible to web developers.