i inspect the network requests and xhr requests for Facebook while chatting i tried to view the response of this requests but i can't see any message how Facebook hide this
When using sockets requests won't show up in the terminal, since the connection is only established once. After that the connection stays open to send and receive events like a send or receive message. Since no new connections are created or closed there wont be any logs in the terminal. You might see a switch protocol request when reloading the page at the beginning.