From b10128e9d44ad459e879e4300d78f17ef722e89b Mon Sep 17 00:00:00 2001
From: dirkwa <dirkwahrheit@gmail.com>
Date: Sat, 24 Jan 2026 08:49:12 +1200
Subject: [PATCH] Fix Node.js 20+ AggregateError with @cypress/request
 libraries

Disable autoSelectFamily (Happy Eyeballs RFC 6555) to prevent
AggregateError crashes in Node-RED nodes using @cypress/request
(e.g., node-red-contrib-telegrambot).

Node.js 20+ enables autoSelectFamily by default, which tries IPv4
and IPv6 connections simultaneously. When both fail, it throws
AggregateError which older HTTP libraries don't handle properly.

Fixes issues with:
- node-telegram-bot-api (uses @cypress/request)
- Other Node-RED nodes using deprecated request libraries

References:
- https://github.com/yagop/node-telegram-bot-api/issues/1193
- https://github.com/nodejs/node/pull/46790
---
 index.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/index.js b/index.js
index 7defb16..d7684dd 100644
--- a/index.js
+++ b/index.js
@@ -14,6 +14,21 @@
  * limitations under the License.
  */
 
+/**
+ * Workaround for Node.js 20+ "Happy Eyeballs" (RFC 6555) causing AggregateError
+ * in libraries using @cypress/request (e.g., node-telegram-bot-api).
+ *
+ * Node.js 20+ enables autoSelectFamily by default, which tries IPv4 and IPv6
+ * simultaneously. When connections fail, it throws AggregateError which older
+ * HTTP libraries don't handle properly.
+ *
+ * See: https://github.com/yagop/node-telegram-bot-api/issues/1193
+ *      https://github.com/nodejs/node/pull/46790
+ */
+const net = require('net')
+if (typeof net.setDefaultAutoSelectFamily === 'function') {
+  net.setDefaultAutoSelectFamily(false)
+}
 
 const RED = require("node-red")
 const compareVersions = require('compare-versions')