//! Cross-Origin Resource Sharing (CORS) controls for Actix Web.
//!
//! This middleware can be applied to both applications and resources. Once built, a [`Cors`]
//! builder can be used as an argument for Actix Web's `App::wrap()`, `Scope::wrap()`, or
//! `Resource::wrap()` methods.
//!
//! This CORS middleware automatically handles `OPTIONS` preflight requests.
//!
//! # Crate Features
//! - `draft-private-network-access`: ⚠️ Unstable. Adds opt-in support for the [Private Network
//! Access] spec extensions. This feature is unstable since it will follow any breaking changes in
//! the draft spec until it is finalized.
//!
//! # Example
//! ```no_run
//! use actix_cors::Cors;
//! use actix_web::{get, http, web, App, HttpRequest, HttpResponse, HttpServer};
//!
//! #[get("/index.html")]
//! async fn index(req: HttpRequest) -> &'static str {
//! "<p>Hello World!</p>"
//! }
//!
//! #[actix_web::main]
//! async fn main() -> std::io::Result<()> {
//! HttpServer::new(|| {
//! let cors = Cors::default()
//! .allowed_origin("https://www.rust-lang.org")
//! .allowed_origin_fn(|origin, _req_head| {
//! origin.as_bytes().ends_with(b".rust-lang.org")
//! })
//! .allowed_methods(vec!["GET", "POST"])
//! .allowed_headers(vec![http::header::AUTHORIZATION, http::header::ACCEPT])
//! .allowed_header(http::header::CONTENT_TYPE)
//! .max_age(3600);
//!
//! App::new()
//! .wrap(cors)
//! .service(index)
//! })
//! .bind(("127.0.0.1", 8080))?
//! .run()
//! .await;
//!
//! Ok(())
//! }
//! ```
//!
//! [Private Network Access]: https://wicg.github.io/private-network-access
use AllOrSome;
pub use Cors;
pub use CorsError;
use ;
pub use CorsMiddleware;