Proposed additional fixes to external authentication.

[keberle]

The pull request I submitted 12 days ago to eliminate the AzureAD config from throwing an exception at startup addressed our need to be able to login to the admin UI with AzureAD (or other OpenID Connect option) but to get that working in a kubernetes container I need forwarded header support. Otherwise, the protocol on the callback url is wrong behind a proxy.

I have that working and it doesn't break anything but it doesn't do me any good to submit that in a pull request is the AzureAD fix is going to be rejected. Can someone weigh in on whether that fix to the startup issue is acceptable before I submit the forwarded headers support pull request?

Thanks.

[tatarincev]

@keberle We take a look at this today

[tatarincev]

I've applied your PR by this commit 465683c

[keberle]

@tatarincev Great. Thank you. I'll submit the PR for the forwarded protocol header soon. That should help anyone running this behind a proxy.