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aa18891dda
$ curl -h all | grep -- --http
Now:
--http0.9 Allow HTTP/0.9 responses
-0, --http1.0 Use HTTP/1.0
--http1.1 Use HTTP/1.1
--http2 Use HTTP/2
--http2-prior-knowledge Use HTTP/2 without HTTP/1.1 Upgrade
--http3 Use HTTP/3
--http3-only Use HTTP/3 only
Before:
--http0.9 Allow HTTP 0.9 responses
-0, --http1.0 Use HTTP 1.0
--http1.1 Use HTTP 1.1
--http2 Use HTTP/2
--http2-prior-knowledge Use HTTP 2 without HTTP/1.1 Upgrade
--http3 Use HTTP v3
--http3-only Use HTTP v3 only
Closes #16542
32 lines
913 B
Markdown
32 lines
913 B
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: http3-only
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Tags: Versions
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Protocols: HTTP
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Added: 7.88.0
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Mutexed: http1.1 http1.0 http2 http2-prior-knowledge http3
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Requires: HTTP/3
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Help: Use HTTP/3 only
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Category: http
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Multi: mutex
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See-also:
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- http1.1
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- http2
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- http3
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Example:
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- --http3-only $URL
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---
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# `--http3-only`
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Instructs curl to use HTTP/3 to the host in the URL, with no fallback to
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earlier HTTP versions. HTTP/3 can only be used for HTTPS and not for HTTP
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URLs. For HTTP, this option triggers an error.
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This option allows a user to avoid using the Alt-Svc method of upgrading to
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HTTP/3 when you know that the target speaks HTTP/3 on the given host and port.
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This option makes curl fail if a QUIC connection cannot be established, it
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does not attempt any other HTTP versions on its own. Use --http3 for similar
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functionality *with* a fallback.
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