allow slash after file url

src/main.rs

@@ -54,7 +54,11 @@ async fn main() -> std::io::Result<()> {
                 )
                 .service(Files::new("/static", "static").disable_content_disposition())
                 .service(
-                    web::resource(["/{id:[a-z0-9]{5}}", "/{id:[a-z0-9]{5}}/{name}"])
+                    web::resource([
+                        "/{id:[a-z0-9]{5}}",
+                        "/{id:[a-z0-9]{5}}/",
+                        "/{id:[a-z0-9]{5}}/{name}",
+                    ])
                     .route(web::get().to(download::download)),
                 )
                 .default_service(web::route().to(not_found))