actix-cors v0.5.4 not support actix-web v4.0.0-beta.1 version , but in actix-web v3.3.2 is fine

[daviscai]

Current Behavior

code :

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", 8082))?
    .run()
    .await;

    Ok(())
}

cargo run :

warning: unused imports: `HttpResponse`, `web`
 --> src/main.rs:2:28
  |
2 | use actix_web::{get, http, web, App, HttpRequest, HttpResponse, HttpServer};
  |                            ^^^                    ^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error[E0277]: the trait bound `Cors: Transform<actix_web::app_service::AppRouting, ServiceRequest>` is not satisfied
  --> src/main.rs:23:19
   |
23 |             .wrap(cors)
   |                   ^^^^ the trait `Transform<actix_web::app_service::AppRouting, ServiceRequest>` is not implemented for `Cors`

error: aborting due to previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0277`.
error: could not compile `test_cors`

Your Environment

• rustc -V
  rustc 1.49.0 (e1884a8e3 2020-12-29)

• Actix-* crate(s) Version:

[dependencies]
actix-web = { version = "4.0.0-beta.1", features = ["openssl"] }
toml = "0.5.8"
actix-service = "2.0.0-beta.3"
actix-cors = "0.5.4"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
json = "0.12.4"

[robjtede]

#144
#147