I've used the inline addon to enable on-page editing, but found that versions of IE would throw an alert dialog when leaving the page without any edits being made.

After some digging around in Stack Overflow and a beer or two it seems that addons/inline/theme/scripts.php is the culprit. Stopping the window.onbeforeunload func from returning null fixed it.

I just commented it out, so I don't know if there is a better way, sure KK will say if there is.

[KK]

Thanks for the heads-up @fuffle
I'll take a look into it and make the necessary changes.