# actix_web::http::header::PRAGMA - Rust
API documentation for the Rust `PRAGMA` constant in crate `actix_web`.
Keywords: rust, rustlang, rust-lang, PRAGMA

# [−] [src] Constant actix_web::http::header::PRAGMA

    pub const PRAGMA: HeaderName

HTTP/1.0 header usually used for backwards compatibility.

The Pragma HTTP/1.0 general header is an implementation-specific header that may have various effects along the request-response chain. It is used for backwards compatibility with HTTP/1.0 caches where the Cache-Control HTTP/1.1 header is not yet present.

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