UTF-32 symbols work in iOS App but not in browser basic UI

Add-ons UIs
1

I just try to use some charset icons in string values.

As I saw they are shown in app correct, but in basic UI not interpreted.

You can check with value like „\uD83D\uDE48“

Looks like other charset in basic zu could solve this?!?

2

I believe the Basic UI uses UTF-8.