how to open external href in Homeassistant iframe?

[itispip]

Eg. if install NodeRed or ESPHome through add-on, the NodeRed/EPSHome can be openned without leave the main interface of HomeAssistant.

In case NodeRed/ESPHome is not installed as add-on but seperate application, and adding a Href to their address through side-bar customization, is it still possible to open the link in iframe of HomeAssistant?

[Ulrar]

Hi,

There's this : https://github.com/doudz/homeassistant-panel_proxy
But it seems broken, unfortunately