Javascript navigator.cookieEnabled 浏览器兼容性 [英] Javascript navigator.cookieEnabled Browser Compatibility

问题描述

navigator.cookieEnabled 的支持程度如何?我可以安全地将其用于所有浏览器吗?

How well supported is navigator.cookieEnabled? Can I safely rely on it for all browsers?

推荐答案

我知道它存在于 至少 IE 6 及更高版本，Firefox 1 及更高版本，并且 Dottoro 报告说它所有主要浏览器都支持.但是，它不是任何 DOM 规范的一部分，因此不能保证在所有浏览器中都可用或正确实现(例如，DOM 实现有限的移动浏览器).

I know it's present in at least IE 6 and later, Firefox 1 and later, and Dottoro reports that it is supported by all major browsers. However, it is not part of any DOM specification and therefore is not guaranteed to be available in or properly implemented by all browsers (for instance, mobile browsers with limited DOM implementations).

正如一些人发现的那样，即使当前站点的 cookie 被阻止，IE 也会为 navigator.cookieEnabled 返回 true.这意味着您目前完全不能依赖该属性，您应该完全避免它.

As some have discovered, IE returns true for navigator.cookieEnabled even if cookies are blocked for the current site. This means that you cannot currently rely on the property at all and you should avoid it completely.

要进行完整的跨浏览器 cookie 支持检查，您可能需要使用以下方法:

For a complete cross browser cookie support check, you might want to go with something like this:

var cookies = ("cookie" in document && (document.cookie.length > 0 ||
        (document.cookie = "test").indexOf.call(document.cookie, "test") > -1));

演示:http://codetester.org/31011785

这将在禁用 cookie 或不支持 DOM 级别 2 属性 document.cookie 的浏览器中返回 false，这是您所能做的在JS中.

This will return false in browsers that have cookies disabled or don't support the DOM level 2 property document.cookie, which is about as far as you can go in JS.

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