【分享】捕捉页面关闭取消事件
假定页面关闭取消事件叫做:onunloadcancel,我们可以这样捕捉他:
<script language="JavaScript">window.onbeforeunload = function(){ setTimeout(function(){setTimeout(onunloadcancel, 0)}, 0); return "真的离开?";}window.onunloadcancel = function(){ alert("取消离开");}</script>