As of rabbitmq/rabbitmq-management#618 there is one more way of configuring listeners, in particular for TLS. This plugin hasn't been updated to support them,
so a node that uses e.g. the following configuration

management.ssl.port       = 15671
management.ssl.cacertfile = /path/to/ca_certificate.pem
management.ssl.certfile   = /path/to/server_certificate.pem
management.ssl.keyfile    = /path/to/server_key.pem

would incorrectly assume that it should use HTTP and not HTTPS for URI schema because the application environment key structure would be different from before rabbitmq/rabbitmq-management#618 days.

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