Image by URL in p5.js

<!doctype html>

<html>
  <head>
    <link rel="stylesheet" href="lib/style.css">
    <script src="lib/script.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.1/p5.js"></script>
  </head>
</html>

/* Add your styles here */

let img

function preload() {
  img = loadImage('https://static-cdn.jtvnw.net/jtv_user_pictures/hsdogdog-profile_image-5550ade194780dfc-300x300.jpeg')
}

function setup() {
  createCanvas(window.innerWidth - 10, window.innerHeight - 20)
}

function draw() {
  background(51)
  imageMode(CENTER)
  image(img, width / 2, height / 2)
}