| Long: proto-default | |
| Help: Use PROTOCOL for any URL missing a scheme | |
| Arg: <protocol> | |
| Added: 7.45.0 | |
| Category: connection curl | |
| Example: --proto-default https ftp.example.com | |
| --- | |
| 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. |