答案很简单 - 这在IE中不再有效，从IE11开始。一个人必须通过他们的购物车以不同的方式传递参数，以便收据/ thanky页面正确地发布这些参数，没有cookie在接收像素脚本上读取。

The answer is simple -- this no longer works in IE, starting with IE11. One will have to pass parameters a different way through their shopping cart in order for the receipt/thankyou page to post those parameters back properly without having cookies to be read on the receiving pixel script.

Microsoft在其网站上发布了此信息：

Microsoft posted information about this on their website:

https://msdn.microsoft.com/en-us/library/mt146424（v = vs.85）.aspx

建议的做法是避免在您的网站上
部署P3P隐私权政策。

因此，如果您在使用P3P标头的脚本中使用假GIF来访问先前在跟踪网域上设置的Cookie - 它现在在IE11中断了，微软不在乎为什么或提供另一个解决方案。有许多网络广告跟踪平台依赖于这一点，而微软只是打破了他们。

So, if you use a fake GIF in a script with a P3P header to access a cookie set previously on the tracking domain -- it's now broken in IE11 and Microsoft doesn't care to post why or to offer another solution. There are many web advertising tracking platforms out there that rely on this, and Microsoft just broke them.