Stage.on('wheel') not firing?

[ajthinking]

Consider:

var width = window.innerWidth;
var height = window.innerHeight;

var stage = new Konva.Stage({
  container: 'container',
  width: width,
  height: height,
  draggable: true,
});

stage.on('wheel', (e) => {
  e.evt.preventDefault();
  console.log("Wheel event directly on stage does not work.");
});

document.getElementById('container').addEventListener('wheel', (e) => {
  console.log('Wheel event on container works');
});

Reproduction: https://codepen.io/ajthinking/pen/ZYzRLpv

Not sure if this is an actual bug or my missunderstanding. Click works directly without going via container.