nginx.conf

user nginx;
worker_processes auto;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    server {
        listen 80;

        server_name localhost;

        location / {
            root /usr/share/nginx/html;
            try_files $uri $uri/ /index.html;
        }

        location ~* \.mjs$ {
            add_header Content-Type application/javascript;
        }

        # Enable CORS headers
        location /pdfjs-4.2.67-dist/ {
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
            add_header Access-Control-Allow-Headers 'Origin, Content-Type, Accept';
        }

        error_page 404 /index.html;
    }
}