From c7982183dfcdef258d057bd7d2b001d7b1e5edff Mon Sep 17 00:00:00 2001
From: Vadym Samoilenko <vadymsamoilenko@oliver.agency>
Date: Wed, 11 Mar 2026 21:58:41 +0000
Subject: [PATCH] Add ProxyFix middleware for Apache reverse proxy

Flask now works correctly behind Apache proxy with URL prefix.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 server.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/server.py b/server.py
index c24b84e..1f65130 100644
--- a/server.py
+++ b/server.py
@@ -24,6 +24,7 @@ import threading
 from datetime import datetime
 from functools import wraps
 from flask import Flask, jsonify, request, send_from_directory, abort, session, redirect, url_for, render_template_string
+from werkzeug.middleware.proxy_fix import ProxyFix
 
 from html_generator import (
     LANGUAGE_DISPLAY_NAMES,
@@ -49,6 +50,9 @@ file_lock = threading.Lock()
 app = Flask(__name__, static_folder="static")
 app.secret_key = os.environ.get("SECRET_KEY", "hm-ems-secret-key-change-in-production")
 
+# Configure for running behind Apache proxy
+app.wsgi_app = ProxyFix(app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_prefix=1)
+
 # Login credentials
 USERNAME = "admin3_M"
 PASSWORD = "Pa$$w0rd2026_!"