Skip to content

Instantly share code, notes, and snippets.

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.responseText != undefined && xhr.responseText != "") {
var xhr2 = new XMLHttpRequest();
xhr2.onreadystatechange = function() {
switch (xhr2.readyState) {
case 0: // uninitialized
case 1: // loading