| c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
| SPDX-License-Identifier: curl |
| Long: http3-only |
| Tags: Versions |
| Protocols: HTTP |
| Added: 7.88.0 |
| Mutexed: http1.1 http1.0 http2 http2-prior-knowledge http3 |
| Requires: HTTP/3 |
| Help: Use HTTP v3 only |
| See-also: http1.1 http2 http3 |
| Category: http |
| Example: --http3-only $URL |
| Multi: mutex |
| Experimental: yes |
| --- |
| Instructs curl to use HTTP/3 to the host in the URL, with no fallback to |
| earlier HTTP versions. HTTP/3 can only be used for HTTPS and not for HTTP |
| URLs. For HTTP, this option will trigger an error. |
| |
| This option allows a user to avoid using the Alt-Svc method of upgrading to |
| HTTP/3 when you know that the target speaks HTTP/3 on the given host and port. |
| |
| This option will make curl fail if a QUIC connection cannot be established, it |
| will not attempt any other HTTP version on its own. Use --http3 for similar |
| functionality *with* a fallback. |
