Remove this line and below
```js
var skip = this.messages.some(function(message) {
  if (message.requestURL == evt.detail.requestURL &&
      message.isApp === evt.detail.isApp) {
    return true;
  }
}, this);
if (!skip) {
  var item = this.createItem(evt.detail);
  this.messages.push(item);
  this.renderPanels(evt.detail, this.messages[len]);
}
```