docs/cmdline-opts/http2-prior-knowledge.d

   1 Long: http2-prior-knowledge
   2 Tags: Versions
   3 Protocols: HTTP
   4 Added: 7.49.0
   5 Mutexed: http1.1 http1.0 http2
   6 Requires: HTTP/2
   7 Help: Use HTTP 2 without HTTP/1.1 Upgrade
   8 ---
   9 Tells curl to issue its non-TLS HTTP requests using HTTP/2 without HTTP/1.1
  10 Upgrade. It requires prior knowledge that the server supports HTTP/2 straight
  11 away. HTTPS requests will still do HTTP/2 the standard way with negotiated
  12 protocol version in the TLS handshake.