does this fix?

Author: lorenzo-cavazzi

client/src/features/dataConnectorsV2/api/data-connectors.empty-api.ts

@@ -18,9 +18,15 @@
 
 import { createApi, fetchBaseQuery } from "@reduxjs/toolkit/query/react";
 
+import { API_BASE_URL } from "~/utils/api/api.constants";
+import { prepareHeaders } from "~/utils/api/api.utils";
+
 // initialize an empty api service that we'll inject endpoints into later as needed
 export const dataConnectorsEmptyApi = createApi({
-  baseQuery: fetchBaseQuery({ baseUrl: "/api/data" }),
+  baseQuery: fetchBaseQuery({
+    baseUrl: API_BASE_URL,
+    prepareHeaders,
+  }),
   endpoints: () => ({}),
   reducerPath: "dataConnectorsApi",
 });