Setting up Dericam with Caddy proxy

[poliant (Antonio)]

very good guide Matt
I’m trying to implement such config for two IP cams (natively do not have SSL support) but it seems for one it is not working (dericam 1080p)
I’m using caddy file and config is as following

(https_header) {
header {
Strict-Transport-Security “max-age=31536000; includeSubdomains”
X-XSS-Protection “1; mode=block”
X-Content-Type-Options “nosniff”
X-Frame-Options “SAMEORIGIN”
Referrer-Policy “same-origin”
}
}
#cam1
https://casa.duckdns.org:81 {
reverse_proxy http://xxx.yyy.zzz.200
}
#cam2
https://casa.duckdns.org:82 {
reverse_proxy http://xxx.yyy.zzz.210
}

Cam#1 works perfectly (chinese IP cam), cam#2 (dericam 1080p) does not work: I can access the webpage of the cam to input userid and password but after typing such info and clicking on “submit” (either credentials are correct either are not correct), I get “time out” just after clicking on login button

Here is the schematic

thanks for support

Any idea