magic890

// Intercept all the HTTP requests and inject a tracker if the payload is JSON
!function() {
  XMLHttpRequest.prototype._original_send = XMLHttpRequest.prototype.send;
  
  let interceptor_send = function(data) {
    try {
      obj = JSON.parse(data);
      obj._tracker = 'tracker_id';
      let new_data = JSON.stringify(obj);
      this._original_send(new_data);