JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="cnv" width="786" height="1113">

JavaScript

var img = new Image(),
    cnv = document.getElementById('cnv');

var context = cnv.getContext('2d');

img.onload = function () {

 	context.drawImage(img, 0, 0, 786, 1113);
    alert('finished drawing');
 				
}

img.src = 'https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/logo_white_fe6da1ec.png';