Using the canvas as the parent of an element makes it disappear

Albizia

Hello, Why does a button disappear if I set canvas as his parent ?

canvas = createCanvas(800, 600);
button = createButton("huhu");
button.parent(canvas);

GoToLoop

If I paste it on https://OpenProcessing.org/sketch/create (after activating p5.dom of course) it runs alright: :-\"

"use strict";

let button;

function setup() {
    const canvas = createCanvas(800, 600);
    button = createButton('huhu');
    button.parent(canvas);
}

GoToLoop

https://Discourse.Processing.org/t/using-the-canvas-as-the-parent-of-an-element-makes-it-disappear/1937