server {
    listen 7860;
    server_name localhost;

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

    # Explicitly deny access to the .git directory
    location /.git {
        deny all;
        return 404;
    }

    # Allow only .html, .js, and .json files; deny everything else with extensions
    location ~* \.(?!html$|js$|json$)[^./]+$ {
        deny all;
        return 403;
    }
}