Caddy version: v2.2.0 h1:sMUFqTbVIRlmA8NkFnNt9l7s0e+0gw+7GPIrhty905A=

I am trying to pass pem-encoded client certificate to proxied service via a X-SSL-Cert header, like so:

sub.example.com {
    reverse_proxy 127.0.0.1:8000 {
        header_up X-SSL-Cert {http.request.tls.client.certificate_pem}
    }

    tls {
        client_auth {
            mode require
        }
    }
}

I like how Simplepush presents a couple of different ways to generate push messages on their website:

https://simplepush.io/#libraries

How about having a similar feature directly in the server GUI? That would include the bits documented here https://gotify.net/docs/pushmsg

A parametrized option to set the blocksize would be useful to experiment with. As quorum is used in a private setting I think this option should be available

Currently there is no download button for credit statements in the Invoices & payments section.

In osx/updater/updater.go, we're referencing an ancient Go package, which has moved to a new location. Right now, the updater doesn't build (should we test this on travis?).

Behavior of the program
Live premiere videos that is not live yet labeled as Live on freetube

Expected behavior
Live premiere videos labeled as such e.g:

To Reproduce
Please add all steps to reproduce the behavior:
2. Click on 'Subscription"
4. See error

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