Function cleanup

client-dist/socket.io.js:2084–2090

()

        }
        // Remove all listeners on the transport and on self
        var cleanup = function cleanup() {
          transport.removeListener("open", onTransportOpen);
          transport.removeListener("error", onerror);
          transport.removeListener("close", onTransportClose);
          _this4.off("close", onclose);
          _this4.off("upgrading", onupgrade);
        };
        transport.once("open", onTransportOpen);
        transport.once("error", onerror);
        transport.once("close", onTransportClose);