Pentaho Reverse Proxy: Kette

Question

I have setup SSL reverse proxy to redirect traffic in a way that

server {
    listen      443 ssl;
    server_name pentaho.somedomain.com;

    ssl_certificate     /etc/ssl/x.pem;
    ssl_certificate_key /etc/ssl/x.key.pem;

    location / {
        proxy_pass http://1.2.3.4:2000;
    }
}

This works fine from the borwser BUT fails from Kettle PDI, I have double checked URL its right

NO error logged in console

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read this Pentaho + apache Reverse Proxy + proxy SSL integration but my browser works fine