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