Chrome中的window.onbeforeunload：最近的修复是什么？ [英] window.onbeforeunload in Chrome: what is the most recent fix?

问题描述

显然，window.onbeforeunload已经遇到了Chrome的问题，正如我从遇到的所有问题中看到的那样。最近的工作是什么？

Obviously, window.onbeforeunload has encountered its fair share of problems with Chrome as I've seen from all the problems I've encountered. What's the most recent work around?

我唯一接近工作的是这个：

window.onbeforeunload = function () { return "alert" };

但是，如果我用警报（blah）代替返回alert，我会得到Chrome中没有任何内容。

However, if I substitute return "alert" with something like alert("blah"), I get nothing from Chrome.

我在这个问题谷歌故意阻止这一点。对他们有好处......但如果有人关闭窗口我想要进行AJAX调用怎么办？在我的情况下，我想知道有人离开我的网站上的聊天室，由窗口关闭发出信号。

I saw in this question that Google purposefully blocks this. Good for them... but what if I want to make an AJAX call when someone closes the window? In my case, I want to know when someone has left the chatroom on my website, signalled by the window closing.

我想知道是否有办法让
（a）：修复window.onbeforeunload调用，以便我可以将AJAX放在那里

或

（b）：获取确定Chrome窗口已关闭的其他方法

I want to know if there's a way to either
(a): fix the window.onbeforeunload call so that I can put AJAX in there
or
(b): get some other way of determining that a window has closed in Chrome

推荐答案

答案：

$(window).on('beforeunload', function() {
    var x =logout();
    return x;
});
function logout(){
        jQuery.ajax({
        });
        return 1+3;
}

有点混搭，但它对我有用。 1 + 3确保正在调用注销功能（当你试图离开时，如果它在弹出窗口上成功，你会看到4）。

A little mix and match, but it worked for me. The 1+3 makes sure that the logout function is being called (you'll see 4 if it's successful on the popup when you try to leave).

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