使用JS访问用户的历史记录

我不需要代码/方法。只是知识。

一个客户刚来找我们一个问题：我们能否从横幅广告中访问用户的历史记录，以便给他们一些有针对性的广告

A client has just come to us with a question: Can we access the user's history from within a banner advert to give them some targeted advertising based on their history.

很明显，这表示隐私问题，但是我需要给出一个很好的理由说明为什么从技术上讲，它不是可行的选择。

Obviously, this presents a privacy issue, but I need to give a good case for why it is technically not a viable option.

所以我有几个问题...

So I have a few questions...

1. 其中浏览器 still （如果有）支持使用 window.history 访问用户的历史记录。


2. 如果有的话做，有些不做。


3. 如果所有浏览器都允许它（我还没有找到一个可行的脚本），为什么它不常用？


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1. Which browsers still, if any, support accessing a user's history, using window.history.
2. If some do and some don't. When did those who don't allow it stop allowing it?
3. If all browsers allow it (I have yet to find a script that works), why is it not commonly used?

最后，
去过Amazon.co.uk之后，我去了Macrumors.com，广告给了我基于关于我购买/看过的产品。我猜这只是基于Cookie /亚马逊已实施的系统？

Finally, Having been on Amazon.co.uk, I then go to Macrumors.com and the adverts give me adverts based on products I have bought/looked at. I'm guessing this is just based on cookies/a system that amazon has implemented?

只是要弄清楚一点：

• 我知道这是一个隐私问题。我不是在寻找代码/做这件事的方法（如上所述）


• 有一些方法可以嗅探页面中的访问链接。


• 过去曾经有一种使用JavaScript history 对象的方式来列出历史记录中的所有对象（来自当前站点）。 history.length 现在仍然有效。我似乎记得有些浏览器只为每个项目返回 undefined ，有些浏览器将它们作为不可读的 object 返回。

• I know it is a privacy issue. I am not looking for code/a way to do it (as I mentioned above)
• There are ways to "sniff" for visited links within a page.
• There used to be a way using the JavaScript history object, to list all the objects within your history (from the current site). history.length still works now. I seem to remember some browsers only returning undefined for each item, some returning them as an unreadable object.