|  | c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al. | 
|  | SPDX-License-Identifier: curl | 
|  | Long: http3 | 
|  | Tags: Versions | 
|  | Protocols: HTTP | 
|  | Added: 7.66.0 | 
|  | Mutexed: http1.1 http1.0 http2 http2-prior-knowledge | 
|  | Requires: HTTP/3 | 
|  | Help: Use HTTP v3 | 
|  | See-also: http1.1 http2 | 
|  | Category: http | 
|  | Example: --http3 $URL | 
|  | Multi: mutex | 
|  | Experimental: yes | 
|  | --- | 
|  | Tells curl to use HTTP version 3 directly to the host and port number used in | 
|  | the URL. A normal HTTP/3 transaction will be done to a host and then get | 
|  | redirected via Alt-Svc, but this option allows a user to circumvent that 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 | 
|  | cannot fall back to a lower HTTP version on its own. |