No problem under the http proxy, http protocol with connection pool,
proxy can forward the request to each other after receiving the request. With keepalive, the persistent connection can be maintained
but HTTP/1.1 200 Connection Established
and connect to the target server
then forward data to each other. After the http proxy, client receives the forwarded data, the connection to the target server maintained by proxy is automatically disconnected.
the connection of the target server cannot be maintained with keepalive. How to solve the problem
?