Display a confirm box on closing tab or window on chrome from a chrome extension -


i all,

is possible display confirm box on closing tab or window on chrome chrome extension.

i try chrome.tabs.onremoved, chrome.tabs.onupdated , beforeunload et unload , doesn't work. in better case display confirm box after tab closed...

i stop closing process allow user save changes not saved user before closing.

thank's advance !


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