auth.js

/**
 * Authenticate submit
 */
Authenticate.prototype.handleSubmit = function (event) {
    event.preventDefault();
    this.submit.setAttribute('disabled', 'true');
    this.log('handleSubmit', event);
    this.xhr = new XMLHttpRequest();
    this.xhr.onload = (this.handleResult).bind(this);
    this.xhr.open(this.form.getAttribute('method'), this.form.getAttribute('action'), true);
    this.xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    this.xhr.send(new FormData(this.form));
    this.displayNotice('Check creditentials.');
};