On Sun, Jun 26, 2011 at 1:34 PM, Sreeram Ramachandran <[email protected]>wrote: > > A confirm() can't actually do the first option ("Don't leave"). I > believe there's nothing a page can do to prevent the navigation once > it is in unload. The only way it can prevent it is by installing a > beforeunload and returning a string. >
Right. So a web page can first ask whether a user wants to save states or not. Then ask whether a user really wants to leave a page or not using beforeunload. I do see that there can be potential uses for confirm and prompt > during page dismissal. However, I haven't seen any such uses in my > manual inspection; also, the number of such instances in the > histograms is very tiny (orders of magnitude smaller than alert()). > Maybe we should just kill alert then. - Ryosuke
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