Just a precision about the JS code

[nbrignol]

Not a problem, just a precision : The "responseText" will be available on the "this" in the event callback only, and no more in the event.target itself (like it is in classic XHR).

I guess you should note it in the doc. Thank about that plugin BTW !

xhr.addEventListener("loadend", function(evt) {
   //var data = evt.target.responseText; //<-- this will not work with the plugin 
   var data = this.responseText; //<-- this works
   document.getElementById("myregion").innerHTML = data;
 });

[manish2788]

Thanks @nbrignol . We will make a note of your feedback.