apps behind reverse proxy

Hi team,
here is what i wrote in the conf file of nginx:

server {
listen 443 ssl;
server_name 10.10.10.100;
access_log off ;
error_log off ;
ssl_certificate /etc/nginx-selfsigned.crt;
ssl_certificate_key /etc/nginx-selfsigned.key;

location /app
{
rewrite ^/e3(.*) /$1 break;
proxy_pass https://10.10.10.101/;
}

the login page is displayed well (https://10.10.10.100:443/app); when I enter my credentials and confirm the connection, instead of displaying the home page correctly, I rather receive a blank (empty) page. I do not understand why.