Fix Access-Control-Expose-Headers header

src/main.rs

@@ -1,5 +1,6 @@
 use actix_cors::Cors;
 use actix_web::{
+    http::header,
     web,
     App, HttpServer,
     dev::Service,
@@ -92,6 +93,11 @@ async fn main() -> std::io::Result<()> {
                     .allow_any_header()
             },
         };
+        let cors_config = cors_config
+            // Link header needs to be explicitly exposed
+            // because expose_any_header doesn't work
+            // https://github.com/actix/actix-extras/issues/192
+            .expose_headers(vec![header::LINK]);
         let mut app = App::new()
             .wrap(cors_config)
             .wrap(ActixLogger::new("%r : %s : %{r}a"))

src/mastodon_api/pagination.rs

@@ -30,9 +30,6 @@ pub fn get_paginated_response(
         );
         HttpResponse::Ok()
             .append_header(("Link", pagination_header))
-            // Link header needs to be exposed
-            // https://github.com/actix/actix-extras/issues/192
-            .append_header(("Access-Control-Expose-Headers", "Link"))
             .json(items)
     } else {
         HttpResponse::Ok().json(items)