[Webroot] Only performs http-01 challenge which doesn't follow HTTP redirects to HTTPS site

[Osiris]

@jeremiejig

The acme server when performing http-01 challenge do follow http redirects to https.

So I think that you may have a broken redirect, a redirect to another host, or maybe some other configuration which hide the challenge folder in your apache config files.

Check all logs of apache usually in /var/log/apache2

Ofcourse I've checked all kinds of logs, even tcpdump: no TLS incoming connections were made what so ever. And the redirect works, I've checked that also ofcourse, manually and in the browser..

Didn't see your previous post, sorry: yes, my server is accessible from the outside world on port 443, both IPv4 and IPv6

I'm going to accept the aformentioned solution as a solution anyway, as the SimpleHTTPS challenge for the Webroot plugin was removed for a reason, as I found out from this post: Preventing Letsencrypt 3rd party clients going the Android way? - #29 by My1
Seems to be a vulnerability with default TLS vhosts and SNI: that way a misconfigured host apparently could 'steal' the domain validation or something..