ethercalc_ynh/conf/nginx.conf-nosub

location / {
       proxy_pass             http://localhost:YUNOPORT/;
       proxy_set_header       Host $host;
       # be careful, this line doesn't override any proxy_buffering on set in a conf.d/file.conf
       proxy_buffering off;       
       include conf.d/yunohost_panel.conf.inc;
}