| c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
| SPDX-License-Identifier: curl |
| Long: http2 |
| Tags: Versions |
| Protocols: HTTP |
| Added: 7.33.0 |
| Mutexed: http1.1 http1.0 http2-prior-knowledge http3 |
| Requires: HTTP/2 |
| Help: Use HTTP/2 |
| See-also: http1.1 http3 no-alpn |
| Category: http |
| Example: --http2 $URL |
| Multi: mutex |
| --- |
| Tells curl to use HTTP version 2. |
| |
| For HTTPS, this means curl will attempt to negotiate HTTP/2 in the TLS |
| handshake. curl does this by default. |
| |
| For HTTP, this means curl will attempt to upgrade the request to HTTP/2 using |
| the Upgrade: request header. |
| |
| When curl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or |
| higher even though that is required by the specification. A user can add this |
| version requirement with --tlsv1.2. |
