Set ipv4 resolution only for local dev

utopia-remix/.env.sample

@@ -1,2 +1,3 @@
 CORS_ORIGIN="http://localhost:8000"
 BACKEND_URL="http://localhost:8001"
+SERVER_ENV="local"

utopia-remix/app/env.server.ts

@@ -1,4 +1,13 @@
+declare global {
+  namespace NodeJS {
+    interface ProcessEnv {
+      SERVER_ENV?: "local" | "stage" | "prod" | "test";
+    }
+  }
+}
+
 export const ServerEnvironment = {
+  environment: process.env.SERVER_ENV,
   // The URL of the actual backend server in the form <scheme>://<host>:<port>
   BackendURL: process.env.BACKEND_URL ?? "",
   // the CORS allowed origin for incoming requests

utopia-remix/app/util/proxy.server.ts

@@ -3,9 +3,11 @@ import { ServerEnvironment } from "../env.server";
 import { proxiedResponse } from "./api.server";
 import dns from "dns";
 
-// this is a workaround for default DNS resolution order with Node > 17 (where ipv6 is first)
-// https://github.com/node-fetch/node-fetch/issues/1624#issuecomment-1235826631
-dns.setDefaultResultOrder("ipv4first");
+if (ServerEnvironment.environment === "local") {
+  // this is a workaround for default DNS resolution order with Node > 17 (where ipv6 comes first)
+  // https://github.com/node-fetch/node-fetch/issues/1624#issuecomment-1235826631
+  dns.setDefaultResultOrder("ipv4first");
+}
 
 const BASE_URL = ServerEnvironment.BackendURL;