master-server/deps/curl/docs/cmdline-opts/no-npn.md
2024-05-15 15:20:32 -04:00

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c SPDX-License-Identifier Long Tags Protocols Added Mutexed Requires Help Category Multi See-also Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. curl no-npn Versions HTTP/2 HTTPS 7.36.0 TLS Disable the NPN TLS extension tls http boolean
no-alpn
http2
--no-npn $URL

--no-npn

curl never uses NPN, this option has no effect (added in 7.86.0).

Disable the NPN TLS extension. NPN is enabled by default if libcurl was built with an SSL library that supports NPN. NPN is used by a libcurl that supports HTTP/2 to negotiate HTTP/2 support with the server during https sessions.