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

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

    pub const X_FRAME_OPTIONS: HeaderName

Indicates whether or not a browser should be allowed to render a page in a frame.

Sites can use this to avoid clickjacking attacks, by ensuring that their content is not embedded into other sites.

The added security is only provided if the user accessing the document is using a browser supporting `x-frame-options`.

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