code: function(error, callback) {
        if (!this.serverURL) {
          return false;
        }
  
        var xhr = new XMLHttpRequest();
        xhr.open('POST', this.serverURL, true);
        xhr.onreadystatechange = function() {
          if (xhr.readyState === 4) {
            typeof callback === 'function' && callback(error, xhr.status === 200);
          }
        };
  
        xhr.setRequestHeader('Content-Type', 'application/json');
        xhr.send(JSON.stringify(error));
      }
docs: #postToServer(ErroneousError error)
  - Posts an error to the server