Configure app for Nginx Proxy Manager reverse proxy. Add ProxyFix middleware to Flask and X-Forwarded-Host header to nginx config for proper proxy header handling.

app.py

@@ -2,6 +2,7 @@ import os
 from datetime import datetime
 from flask import Flask, render_template, request, redirect, url_for, flash, jsonify
 from slugify import slugify
+from werkzeug.middleware.proxy_fix import ProxyFix
 
 from config import config
 from models import db, User, BlogPost, ForumCategory, ForumTopic, ForumReply, ContactMessage
@@ -14,6 +15,9 @@ def create_app(config_name=None):
     app = Flask(__name__)
     app.config.from_object(config[config_name])
 
+    # Trust proxy headers from Nginx Proxy Manager → local nginx (2 proxies)
+    app.wsgi_app = ProxyFix(app.wsgi_app, x_for=2, x_proto=1, x_host=1, x_prefix=1)
+
     db.init_app(app)
 
     with app.app_context():

nginx.conf

@@ -16,6 +16,7 @@ server {
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Host $host;
         proxy_connect_timeout 300s;
         proxy_read_timeout 300s;
     }

static/css/styles.css

@@ -873,6 +873,10 @@ video {
   height: 4rem;
 }
 
+.h-20 {
+  height: 5rem;
+}
+
 .h-24 {
   height: 6rem;
 }