@all: Regarding the animals: I'll have a look when we get closer to A16 stable, currently just too busy with fixing stuff etc

I don't see why it would fail if it says that you got the permission level assigned correctly. *Unless* you have cookies turned off that isPermissions and everything work. The console shows the OpenID getting passed"2017-06-18T10:40:07 99.985 INF Steam OpenID login from 71.xx.xx.xx:55594 with ID 76561197986258927, permission level 0"
But the web page on 8082 returns "Not logged in." after the OpenID transaction.
Anyone else experienced this?

No, the error is "normal" as it simply can't validate the certificate chain.Edit: I've noticed the error INF Steam certificate error: RemoteCertificateChainErrors, which appears to be coming from the steamcommunity.com response.Is there a certificate I need to update on Debian to make it work? the ca-certificates package is already up to date.