http2-prior-knowledge.md 654 B


c: Copyright (C) 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 Multi: boolean See-also:

  • http2
  • http3 Example:
  • --http2-prior-knowledge $URL ---

--http2-prior-knowledge

Issue a non-TLS HTTP requests using HTTP/2 directly without HTTP/1.1 Upgrade. It requires prior knowledge that the server supports HTTP/2 straight away. HTTPS requests still do HTTP/2 the standard way with negotiated protocol version in the TLS handshake.