diff --git a/backend/windmill-api/src/static_assets.rs b/backend/windmill-api/src/static_assets.rs
index aa9870907e..783732b1c0 100644
--- a/backend/windmill-api/src/static_assets.rs
+++ b/backend/windmill-api/src/static_assets.rs
@@ -48,7 +48,10 @@ fn serve_path(path: &str) -> Response<Body> {
             let mut res = Response::builder()
                 .header(header::CONTENT_TYPE, mime.as_ref())
                 .header(header::ACCESS_CONTROL_ALLOW_ORIGIN, "*");
-            if mime.as_ref() == mime::APPLICATION_JAVASCRIPT || path.ends_with(".wasm") {
+            if mime.as_ref() == mime::APPLICATION_JAVASCRIPT
+                || mime.as_ref() == mime::TEXT_JAVASCRIPT
+                || path.ends_with(".wasm")
+            {
                 res = res.header(header::CACHE_CONTROL, "max-age=31536000");
             } else if (mime.type_(), mime.subtype()) == (mime::TEXT, mime::CSS) {
                 res = res.header(header::CACHE_CONTROL, "max-age=31536000");