IE10上显示“离开此页面”消息两次 [英] 'Leave this page' message display twice on IE10

问题描述

我有这些使用onbeforeunload的代码行要求用户在关闭页面之前保存他们的数据。该代码在Firefox和Firefox中运行良好。铬。

  window.onbeforeunload = function（）{
 if（isUpdated）return您有未保存的数据; 
 else返回undefined; 
}; 
  

任何人都有解决这个问题的方法吗？

解决方案

添加 onbeforeunload 事件处理程序到 window.href 而不是窗口：

  window.href.onbeforeunload = function（）{
 if（isUpdated）{
 return您有未保存的数据; 
} else {
 return undefined; 
} 
}; 
  

I have these line of code using onbeforeunload to ask user to save their data before closing the page. The code works well in Firefox & Chrome.

window.onbeforeunload = function () {
    if (isUpdated) return "You have unsaved data";
    else return undefined;
};

In IE (10), when I chose "Leave this page", everything's fine. But when I chose "Stay on this page", the popup closed and then display again, right after that, I have to click one more time on "Stay on this page", which I find annoying.

Anyone have a solution for this?

解决方案

Add the onbeforeunload event handler to window.href instead of window:

window.href.onbeforeunload = function () {
    if (isUpdated) {
        return "You have unsaved data";
    } else {
        return undefined;
    }
};

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