pb behaviors not triggered

[FransJoakim]

It doesn't seem possible to add a behavior that's triggered by a pb-tag. Why is that, and could it be fixed?

Am I wrong? The looks like this (pretty standard):

const ct = new CETEI()
let behaviors = {
  tei: {
	pb: function (e) {
		console.log(e)
		return PageBegin(e)
	},
  },
}
ct.addBehaviors(behaviors)
const html = await ct.makeHTML5(data)

Nothing gets logged the the PageBegin-function does not run.