Tunnel TLS similar to Websockets

[pablo platt]

Hi,

Is it possible to tunnel TLS on one host without terminating it like
Websockets are tunneled?
http://nginx.org/en/docs/http/websocket.html

location / {
    proxy_pass http://backend;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
}

If I understand correctly, both Websockets and TLS send HTTP/1.1 CONNECT
request and than Upgrade header.

Can I use proxy_pass in a server block?

Thanks
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