更改 Firefox 中的 window.location.href 以响应 onunload 事件

发布于 2024-08-23 13:04:52 字数 861 浏览 15 评论 0原文

我在使用 window.location.href 时遇到了一个奇怪的 JavaScript 问题，这显然只影响 Firefox（我使用的是 3.6）。

通常 window.location.href 不是只读的，这在 Firefox 中完美运行：

window.location.href = "http://google.com/";

但是，当我调用函数来响应 onunload 事件时 ()，这不会按预期工作：

function testThis() {
    alert ("1: " + window.location.href);
    window.location.href = "http://google.com/";
    alert ("2: " + window.location.href);
    return false;
}

在这两种情况下，警报都会显示 Firefox 中页面的当前位置，而不进行更改。没有 JavaScript 错误，并且 onunload 事件成功调用该函数，因此问题似乎是编辑或替换 window.location.href 的值。

我尝试过使用 window.location、document.location.href，甚至尝试更改 window.location.search。是否有可能某个事件（特别是 onunload 事件）导致 window.location.href 变为只读？

原文

I have a strange JavaScript problem using window.location.href, which apparently only affects Firefox (I'm using 3.6).

Normally window.location.href would not be read-only, and this works perfectly in Firefox:

window.location.href = "http://google.com/";

However, when I call a function in response to an onunloadevent (<body onunload="testThis();">), this doesn't work as expected:

function testThis() {
    alert ("1: " + window.location.href);
    window.location.href = "http://google.com/";
    alert ("2: " + window.location.href);
    return false;
}

In both cases, the alert displays the current location of the page in Firefox, without making the change. There are no JavaScript errors, and the onunloadevent successfully calls the function, so the problem appears to be editing or replacing the value of window.location.href.

I've tried using window.location, document.location.href, even tried changing window.location.search. Is it possible that an event, specifically an onunload event, causes window.location.href to become read-only?

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