26 lines
741 B
D
26 lines
741 B
D
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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: http2
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Tags: Versions
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Protocols: HTTP
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Added: 7.33.0
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Mutexed: http1.1 http1.0 http2-prior-knowledge http3
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Requires: HTTP/2
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Help: Use HTTP/2
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See-also: http1.1 http3 no-alpn
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Category: http
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Example: --http2 $URL
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Multi: mutex
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---
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Tells curl to use HTTP version 2.
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For HTTPS, this means curl negotiates HTTP/2 in the TLS handshake. curl does
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this by default.
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For HTTP, this means curl attempts to upgrade the request to HTTP/2 using the
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Upgrade: request header.
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When curl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or
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higher even though that is required by the specification. A user can add this
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version requirement with --tlsv1.2.
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