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Disable page close confirmation

Disable page close confirmation (onBeforeUnload)

Ekde 2014/08/17. Vidu La ĝisdata versio. 

// ==UserScript==
// @name Disable page close confirmation
// @description Disable page close confirmation (onBeforeUnload)
// @namespace http://nags.must.die
// @include http://grooveshark.com/*
// @version 1.0
// ==/UserScript==

window.addEventListener('beforeunload', function(e) {
  window.onbeforeunload = null;
  window.onunload = null;
});