1*6236dae4SAndroid Build Coastguard Worker--- 2*6236dae4SAndroid Build Coastguard Workerc: Copyright (C) Daniel Stenberg, <[email protected]>, et al. 3*6236dae4SAndroid Build Coastguard WorkerSPDX-License-Identifier: curl 4*6236dae4SAndroid Build Coastguard WorkerLong: no-alpn 5*6236dae4SAndroid Build Coastguard WorkerTags: HTTP/2 6*6236dae4SAndroid Build Coastguard WorkerProtocols: HTTPS 7*6236dae4SAndroid Build Coastguard WorkerAdded: 7.36.0 8*6236dae4SAndroid Build Coastguard WorkerRequires: TLS 9*6236dae4SAndroid Build Coastguard WorkerHelp: Disable the ALPN TLS extension 10*6236dae4SAndroid Build Coastguard WorkerCategory: tls http 11*6236dae4SAndroid Build Coastguard WorkerMulti: boolean 12*6236dae4SAndroid Build Coastguard WorkerSee-also: 13*6236dae4SAndroid Build Coastguard Worker - no-npn 14*6236dae4SAndroid Build Coastguard Worker - http2 15*6236dae4SAndroid Build Coastguard WorkerExample: 16*6236dae4SAndroid Build Coastguard Worker - --no-alpn $URL 17*6236dae4SAndroid Build Coastguard Worker--- 18*6236dae4SAndroid Build Coastguard Worker 19*6236dae4SAndroid Build Coastguard Worker# `--no-alpn` 20*6236dae4SAndroid Build Coastguard Worker 21*6236dae4SAndroid Build Coastguard WorkerDisable the ALPN TLS extension. ALPN is enabled by default if libcurl was built 22*6236dae4SAndroid Build Coastguard Workerwith an SSL library that supports ALPN. ALPN is used by a libcurl that supports 23*6236dae4SAndroid Build Coastguard WorkerHTTP/2 to negotiate HTTP/2 support with the server during https sessions. 24*6236dae4SAndroid Build Coastguard Worker 25*6236dae4SAndroid Build Coastguard WorkerNote that this is the negated option name documented. You can use --alpn to 26*6236dae4SAndroid Build Coastguard Workerenable ALPN. 27