From c0fdcfc6bb4c7c73d82c876a17cd285602b45179 Mon Sep 17 00:00:00 2001
From: Alexandre <44178713+alexbelgium@users.noreply.github.com>
Date: Sat, 28 Jun 2025 10:46:30 +0200
Subject: [PATCH] Fix connections with ssl

https://github.com/alexbelgium/hassio-addons/issues/1877#issuecomment-3010832728
---
 portainer/rootfs/etc/nginx/templates/ingress.gtpl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/portainer/rootfs/etc/nginx/templates/ingress.gtpl b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
index ef36473c0..cd7d2cfd0 100644
--- a/portainer/rootfs/etc/nginx/templates/ingress.gtpl
+++ b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
@@ -13,6 +13,9 @@ server {
     proxy_send_timeout 30m;
     proxy_read_timeout 30m;
     proxy_set_header Origin "";
+    # Ensure the backend knows the correct host
+    proxy_set_header Host $http_host;
+    proxy_set_header X-Forwarded-Host $http_host;
 }
 
   location /api/websocket/ {
@@ -24,6 +27,9 @@ server {
     proxy_connect_timeout 30m;
     proxy_send_timeout 30m;
     proxy_read_timeout 30m;
+    # Ensure the backend knows the correct host
+    proxy_set_header Host $http_host;
+    proxy_set_header X-Forwarded-Host $http_host;
   }
 }