IE10上显示“离开此页面”消息两次

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。

  
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;
    }
};
                        
这篇关于IE10上显示“离开此页面”消息两次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！