onbeforeunload in Opera

Question

I\'m using the code that netadictos posted to the question here. All I want to do is to display a warning when a user is navigating away from or closing a window/tab.

Answer 1

Mobile Safari (iPhone/iPad) also doesn't support onbeforeunload, and I strongly suspect it is not likely to.

For detecting back/forward navigation there may be workarounds e.g. see Is there an alternative method to use onbeforeunload in mobile safari?.