lib/elasticsearch/api/actions/bulk.rb in elasticsearch-api-7.16.0 vs lib/elasticsearch/api/actions/bulk.rb in elasticsearch-api-7.16.1

@@ -63,10 +63,10 @@
           payload = Elasticsearch::API::Utils.__bulkify(body)
         else
           payload = body
         end
 
-        headers.merge!("Content-Type" => "application/x-ndjson")
+        headers = Utils.ndjson_headers(headers)
         perform_request(method, path, params, payload, headers).body
       end
 
       # Register this action with its valid params when the module is loaded.
       #