# Добавить в server-блок montana_quest (/etc/nginx/sites-available/montana_quest)
# перед "location / { ... }"

location /messenger/api/ {
    proxy_pass http://127.0.0.1:5010/api/;
    proxy_http_version 1.1;
    proxy_set_header Host $host;
    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 https;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_read_timeout 86400;
    add_header Access-Control-Allow-Origin "*" always;
    add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
    add_header Access-Control-Allow-Headers "Content-Type, Authorization" always;
    if ($request_method = OPTIONS) { return 204; }
}

location /messenger/ {
    alias /var/www/montana_quest/messenger/;
    try_files $uri $uri/ /messenger/index.html =404;
    add_header Cache-Control "public, max-age=60";
}