suppress-tablet-pen-events.js

canvas.addEventListener('pointerover', (e) => {e.preventDefault()});
canvas.addEventListener('pointerout',  (e) => {e.preventDefault()});
canvas.addEventListener('pointerenter',(e) => {e.preventDefault()});
canvas.addEventListener('pointerleave',(e) => {e.preventDefault()});
canvas.addEventListener('mouseover',   (e) => {e.preventDefault()});
canvas.addEventListener('mouseout',    (e) => {e.preventDefault()});
canvas.addEventListener('mouseenter',  (e) => {e.preventDefault()});
canvas.addEventListener('mouseleave',  (e) => {e.preventDefault()});