From 1e25b382488629fb23ceb3dd46b6abdbc909f7e0 Mon Sep 17 00:00:00 2001
From: Alexandre <44178713+alexbelgium@users.noreply.github.com>
Date: Sat, 28 Jun 2025 13:43:28 +0200
Subject: [PATCH] Thanks @lmagyar

---
 portainer/rootfs/etc/nginx/templates/ingress.gtpl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/portainer/rootfs/etc/nginx/templates/ingress.gtpl b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
index cd7d2cfd0..0946ffa2f 100644
--- a/portainer/rootfs/etc/nginx/templates/ingress.gtpl
+++ b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
@@ -12,7 +12,7 @@ server {
     proxy_connect_timeout 30m;
     proxy_send_timeout 30m;
     proxy_read_timeout 30m;
-    proxy_set_header Origin "";
+    proxy_set_header Origin "$http_origin";
     # Ensure the backend knows the correct host
     proxy_set_header Host $http_host;
     proxy_set_header X-Forwarded-Host $http_host;
@@ -22,7 +22,7 @@ server {
     proxy_pass {{ .protocol }}://backend/api/websocket/;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
-    proxy_set_header Origin "";
+    proxy_set_header Origin "$http_origin";
     resolver 127.0.0.11 valid=180s;
     proxy_connect_timeout 30m;
     proxy_send_timeout 30m;