“推荐人"的替代方案标题

问题描述

我使用了代码request.getHeader("Referer");"该代码似乎工作正常.但最近我发现它在 IE 中不起作用.IE 正在抛出 null.我现在对如何前进一无所知.Referer"标头是否有任何替代方案可以获取上一个链接并在所有浏览器中正常工作?从上一个链接设置自定义标题对我来说不是一个可行的选择.所以有人请帮我解决这个问题.谢谢.

I have used the code "request.getHeader("Referer");" The code seemed to work fine. But recently I found out that it is not working in IE. IE was throwing null. I am now left clueless about how to go forward. Is there any alternative for "Referer" header which can get the previous link and work correctly in all the browsers? Setting a custom header from the previous link is not a viable option for me. So someone please help me out on this. Thanks.

推荐答案

Referer"标题条目是可选的.你不能依赖它的存在.没有跨浏览器的方式来获取上一个链接，因为这取决于用户设置和代理配置(即系统管理员认为他们应该允许您查看的内容).

The "Referer" header entry is optional. You cannot rely on it being present. There is no cross-browser way to get the previous link because this depends on the user settings and proxy configuration (i.e. what the system administrators think they should allow you to see).

你必须想办法在没有这些信息的情况下生活.

You must find a way to live without this information.

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