set default_type to application/octet-stream

CoreModules/nginx/config/nginx/nginx-default.conf

@@ -26,7 +26,7 @@ http {
 	server_names_hash_bucket_size 64;
 
 	include /etc/nginx/mime.types;
-	default_type text/html;
+	default_type application/octet-stream;
 
 	ssl_protocols TLSv1.3 TLSv1.2;
 	ssl_prefer_server_ciphers on;