c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: proto-default Help: Use PROTOCOL for any URL missing a scheme Arg: Added: 7.45.0 Category: connection curl Multi: single See-also:
--proto-default
Tells curl to use protocol for any URL missing a scheme name.
An unknown or unsupported protocol causes error CURLE_UNSUPPORTED_PROTOCOL (1).
This option does not change the default proxy protocol (http).
Without this option set, curl guesses protocol based on the host name, see --url for details.