node.js - expressr获取不到cookie的expires信息，如何获取cookie的expires信息

Question

前提是子站服务器端使用express搭建，浏览器端存有主站的cookie信息。访问子站时，子站服务器端能够获取到cookie的key=value信息，但是获取不到cookie的expires或者max-age信息。
在主站的java服务器上可以获取cookie全部信息，所以比较疑惑，在express上如何获取cookie的全部信息？

Answer 1

How do you get it on the Java main site? It is not possible. The http protocol will only send key-value pair information without expired cookies. Other messages will not be sent back. In Java's servlet api, Cookie.getMaxAge always returns -1. The same goes for the others. This is determined by the http protocol itself and has nothing to do with any framework or language.