cookies - 设置子子域可访问的跨子域cookie？

Question

我设置了一个域为.example.com. 它应该适用于我网站上的每个一级子域。

但是，它在第​​ n级子域上不可用，即sub.subdomain.example.com，并且too.many.subdomains.subdomain.example.com看不到跨子域 cookie subdomain.example.com。有什么解决办法吗？

Answer 1

The client seems not to follow the rules specified in the rfc. IE fails when there's an underscore in the domain name.

See https://www.rfc-editor.org/rfc/rfc6265#section-5.1.3