Comment 55 for bug 1807023

xenial:

same steps as last comment.

reproduction using d-i version 20101020ubuntu451.26

~ # wget http://github.com/
--2018-12-19 20:15:36-- http://github.com/
Resolving github.com... 192.30.253.113, 192.30.253.112
Connecting to github.com|192.30.253.113|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://github.com/ [following]
--2018-12-19 20:15:36-- https://github.com/
Connecting to github.com|192.30.253.113|:443... connected.
ERROR: cannot verify github.com's certificate, issued by 'CN=DigiCert SHA2 Extended Validation Server CA,OU=www.digicert.com,O=DigiCert Inc,C=US':
  Unable to locally verify the issuer's authority.
To connect to github.com insecurely, use `--no-check-certificate'.

verification of fix using d-i version 20101020ubuntu451.27

~ # wget http://github.com/
--2018-12-19 20:18:37-- http://github.com/
Resolving github.com... 192.30.253.113, 192.30.253.112
Connecting to github.com|192.30.253.113|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://github.com/ [following]
--2018-12-19 20:18:37-- https://github.com/
Connecting to github.com|192.30.253.113|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: 'index.html'

index.html [ <=> ] 78.22K --.-KB/s in 0.04s

2018-12-19 20:18:37 (1.82 MB/s) - 'index.html' saved [80096]