Issues installing service agent Ubuntu 21.04 with self hosted behind SLL Offloaded proxy (workaround found)

Nobody has claimed this yet.

I am trying out Remotely (thanks for this software btw) and have had a few issues but this one is one i think worth raising especially as i was able to fix it with some code script changes myself.

I am hosting remotely on a server behind a nginx reverse proxy that is handling the ssl, this ssl proxy i think may be the cause of one of the two issues i had.

Issue one:
I was getting an error saying the microsoft .deb package was not in the right format. I looked this up and apparently wget sometimes gets a bad download (0kb) the workaround being remove the wget line and download it myself into the same folder
Issue two:
I was getting connection errors in the logs and it was failing to register on my server. after reading the source code and some reading of the script i saw the protocol of the server was http not https, probably because its behind a proxy (running in a docker container). the fix was easy i changed the script host to https and it worked.

some documentation on this or ideally code to detect/configure this on the server would resolve this issue and save others the couple of hours i lost debugging this (im new to linux so took a while to figure out)

Start by reviewing the service-agent installation script and the server/proxy configuration involved in downloading the Microsoft .deb package and constructing the connection URL. Reproduce installation behind an nginx SSL-offloaded proxy; done when the package downloads correctly, the agent uses HTTPS, and the required configuration or workaround is documented.

Written by the indexing model from the issue text.