A computer-implemented method for handling client-server communications. The method may include 1) receiving, at a client system, a first command whose execution involves sending a first request to a server from a first transitory process associated with the first command; 2) initializing, on the client system, a communication proxy configured to relay communications between the server and transitory processes on the client system; 3) establishing a connection between the communication proxy and the server; 4) authenticating the communication proxy with the server; 5) establishing an inter-process communication channel configured to enable communication between the communication proxy and the transitory processes; 6) sending the first request from the first transitory process to the communication proxy over the inter-process communication channel; and 7) relaying the first request to the server via the connection between the communication proxy and the server. Various other methods, systems, and computer-readable media are also disclosed.