not working on iOS

[realjanek]

works only on Windows Chrome

root@raspberrypi:~# service uv4l_raspicam status
● uv4l_raspicam.service - UV4L Raspicam
Loaded: loaded (/etc/systemd/system/uv4l_raspicam.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2021-07-05 15:00:08 AEST; 1h 25min ago
Main PID: 306 (uv4l)
Tasks: 13 (limit: 721)
CGroup: /system.slice/uv4l_raspicam.service
└─306 /usr/bin/uv4l -f -k --sched-fifo --mem-lock --config-file=/etc/uv4l/uv4l-raspicam.conf --driver raspicam --driver-config-file=/etc/uv4l

Jul 05 15:00:10 raspberrypi uv4l[306]: [server] HTTP/HTTPS Streaming & WebRTC Signalling Server v1.1.129 built on Feb 22 2021
Jul 05 15:00:10 raspberrypi uv4l[306]: [server] SSL is enabled for the Streaming Server. Using secure HTTPS.
Jul 05 15:00:10 raspberrypi uv4l[306]: [server] SSL is enabled for the WWW Server. Using secure HTTPS.
Jul 05 15:00:10 raspberrypi uv4l[306]: [core] Streaming Server loaded!
Jul 05 15:00:10 raspberrypi uv4l[306]: [core] Registering device node /dev/video0
Jul 05 15:00:10 raspberrypi uv4l[306]: [server] Web Streaming Server listening on port 8085
Jul 05 15:00:10 raspberrypi uv4l[306]: [server] HTTP/HTTPS Server for custom web pages listening on port 9000
Jul 05 15:11:46 raspberrypi uv4l[306]: [webrtc] WebRTC Renderer extension successfully loaded
Jul 05 15:11:46 raspberrypi uv4l[306]: [server] WebRTC, Signalling Server and STUN Server extensions successfully loaded
Jul 05 15:11:49 raspberrypi uv4l[306]: [webrtc] Enabling WebRTC Audio Recording Device 'mems-mic, bcm2835-i2s-ics43432-hifi ics43432-hifi-0-Def
lines 1-18/18 (END)

Windows
works on Chrome

doesn't work on Firefox, giving an error:
Can't parse received candidate message: Expect line: candidate:

on iPhone and iPad (all browsers)
An error has occured on the websocket (make sure the address is correct)!

on Macbook
Can't parse received candidate message: Expect line: candidate:
received message {"what":"message","data":"Can't parse received candidate message:
Expect line: candidate:"} signalling.js:119:21

[realjanek]

I am using RPi 3A+