Prevent page close if long operation is running - Githubissues

opinsys / walma

Collaborative Whiteboard

http://walma.opinsys.fi/

GNU General Public License v2.0

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Prevent page close if long operation is running #36

Open esamattis opened 12 years ago

esamattis commented 12 years ago

For example background sending.

https://developer.mozilla.org/en/DOM/window.onbeforeunload