From 85e9be9a40f95c35f133f6a63f29cda4106d705c Mon Sep 17 00:00:00 2001
From: Anton Afanasyev <a.afanasieff@gmail.com>
Date: Wed, 24 Jun 2026 17:49:02 +0200
Subject: [PATCH] fe: add connection_upgrade map for apps.conf proxy

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 fe/ac-fe-upstream.conf | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fe/ac-fe-upstream.conf b/fe/ac-fe-upstream.conf
index ce1a540..424a73e 100644
--- a/fe/ac-fe-upstream.conf
+++ b/fe/ac-fe-upstream.conf
@@ -1,6 +1,11 @@
 # Shared cluster upstream — include in http {} before apps.conf / ac-fe.conf.
 # STAGING/DEV: cast01–03 lab cluster (no artc0).
 
+map $http_upgrade $connection_upgrade {
+	default upgrade;
+	''      close;
+}
+
 upstream ac_be_backend {
 	server cast01.intra.raptor.org:80;
 	server cast02.intra.raptor.org:80 backup;