KSDR V2 Audio not playing at startup? HTTPS issue?

V2 10/23/26 pull. Boot rpi5, launch browser (chromium on host rpi) using https://…, hmi appears OK with frequency and audio button=ON. No audio is heard. Click audio button OFF…ON, audio plays OK.

Note: in my browser, connection to ksdr gives “not secure” warning. I select “proceed anyway..”, browser connects OK but indicates “Not secure” in the URL box (see photo).