xxxdev.com nginx config:

upstream phpfpm_xxxdev2_stream {
        server 127.0.0.1:9000;
        keepalive 64;
}
server {
        server_name xxxdev.com;
        root /var/www/htdocs/lp/v2/build/;
#        index index.html;
        listen 443 ssl http2;

        error_log /var/log/nginx/xxxdev2.error;

        ssl_certificate "/etc/nginx/ssl/xxx.pem";
        ssl_certificate_key "/etc/nginx/ssl/xxx.key";
        ssl_session_cache shared:SSL:1m;
        ssl_session_timeout  10m;
        ssl_ciphers HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers on;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
                 try_files $uri /index.html index.php;
        }

      location ~ \.php$ {
        fastcgi_pass phpfpm_xxxdev2_stream;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;

        proxy_buffer_size          128k;
        proxy_buffers              4 256k;
        proxy_busy_buffers_size    256k;

        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
    }
}