Dear Maintainer,

Debian *urgently* needs to move into the 21st century with first-class support for https in preeseed apt-setup automated installs !!

Thanks to projects such as Let's Encrypt and the major browsers actively pushing it, an increasing majority of web resources are going https only.

Debian not supporting https renders it useless.

For example :

d-i apt-setup/local0/repository string http://repo.saltproject.io/py3/debian/10/amd64/latest buster main

This might look good.  But the problem is the target does a silent 301 Redirect to https.  Which then kills the automation (apt-setup comments it out as "unverifiable").

It also prevents users setting https:// resources off the bat.