From 4ff04c386e216590e05494273c8daa9c9001e017 Mon Sep 17 00:00:00 2001
From: hsiegeln <37154749+hsiegeln@users.noreply.github.com>
Date: Mon, 13 Apr 2026 18:04:30 +0200
Subject: [PATCH] fix(installer): force lowercase hostname in merge_config
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Moves hostname normalization into merge_config() so it applies
regardless of source (CLI flag, env var, config file, prompt,
auto-detect). Logto normalizes hostnames internally — case mismatch
causes JWT issuer validation failure (401).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 installer/install.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/installer/install.sh b/installer/install.sh
index c2b6efb..155ee44 100644
--- a/installer/install.sh
+++ b/installer/install.sh
@@ -494,6 +494,9 @@ merge_config() {
   : "${COMPOSE_PROJECT:=$DEFAULT_COMPOSE_PROJECT}"
   : "${DOCKER_SOCKET:=$DEFAULT_DOCKER_SOCKET}"
 
+  # Force lowercase hostname — Logto normalizes internally, case mismatch breaks JWT validation
+  PUBLIC_HOST=$(echo "$PUBLIC_HOST" | tr '[:upper:]' '[:lower:]')
+
   if [ -z "$NODE_TLS_REJECT" ]; then
     if [ "$TLS_MODE" = "custom" ]; then
       NODE_TLS_REJECT="1"