Octez_rpc_process.Forward_handlerval callback :
acl:Tezos_rpc_http_server.RPC_server.Acl.t ->
Tezos_rpc_http_server.RPC_server.server ->
Tezos_rpc_http_server.RPC_middleware.forwarder_resources ->
string ->
Tezos_rpc_http_server.RPC_server.callbackcallback server forwarder_resources socket_path redirects all the traffic received by the given server to the socket determined by socket_path if it fails to be resolved locally. The forwarding happens only if the acl rules are satisfied.