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- c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
- SPDX-License-Identifier: curl
- Long: http2-prior-knowledge
- Tags: Versions
- Protocols: HTTP
- Added: 7.49.0
- Mutexed: http1.1 http1.0 http2 http3
- Requires: HTTP/2
- Help: Use HTTP 2 without HTTP/1.1 Upgrade
- Category: http
- Example: --http2-prior-knowledge $URL
- See-also: http2 http3
- ---
- Tells curl to issue its non-TLS HTTP requests using HTTP/2 without HTTP/1.1
- Upgrade. It requires prior knowledge that the server supports HTTP/2 straight
- away. HTTPS requests will still do HTTP/2 the standard way with negotiated
- protocol version in the TLS handshake.
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