Container movement with moveToObject

[Christian981]

I have an enemy with a health bar. I want the health bar to move with the enemy. To do this I have made a container like this:

var container = scene.add.container(x, y, [enemy, healthBar]);

This work just as expected, the problem is when I try to move the container with moveToObject like this:

scene.physics.moveToObject(container, player, speed);

This does not work at all. How do I solve this?