I set up reverse proxy with DuckDNS + encryption. I forwarded port 18123 to internal port 8123 on Hass server. From a browser (PC, my phone), both external and internal addresses work perfectly well.
But the companion app (full flavor) only manages to connect once (sometimes not) right after I set it up, and then no more if I close/open it. I just see the blue header at the top, no menu, no text. After a few secs, a message pops up where I can chose to review the parameters or wait.
Same for internal and external addresses. I tried multiple times to start fresh, but no change.
I have Android 7.
In the app log, I could see syntax error line : unexected token “import” , then my external DuckDNS address.
Any idea ?