Can't Listen to Extension PubSub Whispers

Extensions
4

I tested

window.Twitch.ext.listen(window.Twitch.ext.viewer.opaqueId, (t,c,m) => {
});

And didn’t get a bad Auth.

EDIT: ABOVE IS INCORRECT should be

window.Twitch.ext.listen(‘whisper-’+window.Twitch.ext.viewer.opaqueId, (t,c,m) => { });