process.features.tls_alpn

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Stability: 0Deprecated. Use process.features.tls instead.

Type:boolean

A boolean value that is true if the current Node.js build includes support for ALPN in TLS.

In Node.js 11.0.0 and later versions, the OpenSSL dependencies feature unconditional ALPN support. This value is therefore identical to that of process.features.tls.