在javascript中检测SNI（服务器名称指示）浏览器支持 [英] Detecting SNI (Server Name Indication) browser support in javascript

问题描述

我希望能够检测浏览器是否支持 SNI - 服务器名称指示。我希望将不合规的客户端重定向到不同的地址。

I want to be able to detect if the browser support SNI - Server Name Indication. I'm hoping to redirect non compliant clients to a different address.

我正在考虑通过SSL加载一些内容并确保它被安全地转移。否则浏览器不支持SNI。可以这样做吗？

I was thinking of loading some content through SSL and make sure it was transfered securely. Otherwise the browser doesn't support SNI. Can this be done?

推荐答案

你可以设置一个支持SNI的服务器，提供两个主机名，你需要SNI的地方和一个后备的服务器解决方案，都提供他们正在托管的名称。

You could set up a server that supports SNI, serving two host names, on where you require SNI and one that's a fallback solution, both serving the name that they are hosting.

以下内容：

• https://www.example.com/name 返回一个表示我是www.example.com


• https://www.example.net/name 返回我是www。 example.net （并要求SNI）。

• https://www.example.com/name returns a representation saying I'm www.example.com
• https://www.example.net/name returns I'm www.example.net (and requires SNI).

如果您向<$ c $发出XHR请求c> https://www.example.net/name 并返回 www.example.com ，然后浏览器不支持SNI 。

If you make an XHR request to https://www.example.net/name and it returns www.example.com, then the browser doesn't support SNI.

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