request.authority


请求权限伪头域。 因为 HTTP/2 允许请求设置 :authorityhost,如果存在,则此值是从 req.headers[':authority'] 派生的。 否则,它是从 req.headers['host'] 派生的。

The request authority pseudo header field. Because HTTP/2 allows requests to set either :authority or host, this value is derived from req.headers[':authority'] if present. Otherwise, it is derived from req.headers['host'].