Automatically updates any page every at whatever

updatePage.js

var delay = 1; // seconds
var update = function(delay) {
	var request = new XMLHttpRequest();
	request.open('GET', window.location.href, true);
	request.onload = function() {
		document.body.innerHTML = this.response;
		setTimeout(() => update(delay), (delay | 1) * 1000);
	};
	request.send();
};
update(delay);