Hi!
My HA is configured with a public DNS address.
On my local network, the local DNS server is configured so that this public address also works locally.
However, when configuring the spotify add-on, for some reason, I had to login on hass.io with the local ip vs. DNS (on local network).
indeed, when https://my.dns.com/api/config/config_entries/flow was called for spotify using my DNS address, it responded with:
{
description_placeholders: {
docs_url: "https://www.home-assistant.io/more-info/no-url-available"
},
flow_id: "xxxxxxxxxx",
handler: "spotify",
reason: "no_url_available",
type: "abort"
}