What is the largest canvas size on WordPress?

This is a test. Line spacing is 100.

biggrid

function setup() {
    createCanvas(800, 800);
}

function draw() {
    background(200, 200, 150);
    for (var i = 0; i <= 800; i += 100) {
        line(i, 0, i, 800);
        line(0, i, 800, i);
    }
    noLoop();
}