in src/plugin/fieldViews/CustomFieldView.ts [77:86]
public unsubscribe(subscriber: Subscriber<Value>) {
const subscriberIndex = this.subscribers.indexOf(subscriber);
if (subscriberIndex === -1) {
console.error(
`[prosemirror-elements]: Attempted to unsubscribe from a CustomFieldView but couldn't find the subscriber`
);
return;
}
this.subscribers.splice(subscriberIndex, 1);
}