Setup of http and https

Not sure if correct place to ask but.

Before the change to websockets (bak in 0.3x?) i was happily running hass on
http://hass.local.net and set up a virtual web server to pass all the communications from outside.

Now i’m running hass with the let’s encrypt certificate on the https://www.theaddress.com:8123 with direct port forwarding set up on the router. Took numerous attempts to set it up like before but failed due to web sockets (sophos gateway system).

I also have Grafana and Kodi instances running locally under the address of
http://grafana.local.net
http://kodi.local.net

Before they were set up as

panel_iframe:
  kodi:
    title: 'Kodi'
    icon: mdi:movie
    url: 'http://kodi.local.net'
  grafana:
    title: 'Grafana'
    url: 'http://grafana.local.net'

And now of course they don’t show up on me when accessing them from local net. So i wonder what are the best ways to unertake this problem if i cannot set up a https proxy on my gateway to worward hass.local.net as https://www.externalurl.com