[whatwg] prompts, alerts and showModalDialog during beforeunload/unload events

[Scott González]

On Thu, Feb 11, 2010 at 9:55 PM, Tab Atkins Jr. <jackalmage at gmail.com>wrote:

> I commonly see them put to *good* use by editting applications,
> warning you if you attempt to leave the page without saving.  It has
> saved me from accidentally lost effort just in the past few days in
> both my email and one of my wikis.
>

I use dialogs in this fashion as well. Users get very frustrated when they
accidentally leave a page with unsaved content and this is the easiest
improvement for most developers to make.
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