chrome for pc and firefox for mobile can't see video or hear audio from each other.

[jonahzheng]

Your environment.

mac 10.14.5
chrome pc 83.0.* (64bit)
firefox mobile
vscode 1.47.0

What did you do?

1.git clone https://github.com/pion/ion-app-flutter.git
2.cd ion-app-flutter
3.flutter build web --release
4.copy ion-app-flutter/build/web to nginx web directory
5. bind https://***.com, and set ssl

What did you expect?

chrome web open https://.com
firefox mobile open https://.com

What happened?

They can't see video or hear audio from each other, but can chat to each other