Navigation warnings

While I am editing an article on wikipedia and try to navigate in the current tab (reload, back, forward, click on a link), it shows me a JavaScript alert "This page is asking you to confirm that you want to leave - data you have entered may not be saved." It would me nice to have similar alert when you are typing a comment and try to navigate before submitting it.

bob j's avatar
bob j
asked 2014-08-30 18:57:07 -0500
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