mine is: https://*******.duckdns.org/hassio/ingress/core_configurator but i use the cloud service. as you mentioned in your post, i copied mine from the webui link from within the addon.
edit: i can access mine remotely too (not just on local network) hope this helps.
edit 2: you have it open lol. just hit the picture of a folder below where it says “configurator”
There is a new feature for Hass.io called Ingress. The Configurator addon uses it.
From the official blog:
For the upcoming Home Assistant 0.92 release, we will be adding support to add links to your add-ons to the Home Assistant sidebar via a toggle on the add-on details page. The link will open the add-on Ingress interface, embedding the add-on in the Home Assistant UI. This will make it look and feel like a single system.
After upgrading the add-on, my panel_iframe doesn’t work anymore.
This is related to the question above. Once you enable direct access again, your iFrame panel will start working again. Until the automated panel integration lands in 0.92, you can also manually add a panel that points at Ingress.
A current workaround for the manual configuration is to use:
Arrrg! Anybody else fallen foul of Chrome on a MacBook when editing config files in configurator? About one time out of twenty I’ll try to pan left with the trackpad and inadvertently end up going “back” in history and wiping out all my edits!! Arrrr