Rust Actix Scope Middleware

Cargo.toml

[package]
name = "rust-actix-scope-middleware-bug"
version = "0.1.0"
authors = ["Oscar Beaumont <[email protected]>"]
edition = "2018"

[dependencies]
actix-web = "3.3.2"

main.rs

use actix_web::{middleware, web, App, HttpServer, Responder};

async fn index() -> impl Responder {
    "Hello World"
}

async fn index_compressed() -> impl Responder {
    "Hello World Compressed!"
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new().route("/", web::get().to(index)).service(
            web::scope("")
                .wrap(middleware::Compress::default())
                .route("/compressed", web::get().to(index_compressed)),
        )
    })
    .bind(("0.0.0.0", 9000))?
    .run()
    .await
}