I am using gitpod to test the push notifications that I have setup in DJnago using firebase. Everything went well but in the end the request permission dialog box didn't appear. I am not sure what is the cause.

The link that I followed is this one:

https://blog.hipolabs.com/testing-push-notifications-locally-with-firebase-ef052531af03

It was supposed to come like this:

But in mine it appears like this:

The request permission button is missing on mine. I have done several attempts but the same result. The index.html file looks like this:

function requestPermission() {
    console.log('Requesting permission...');
    Notification.requestPermission().then((permission) => {
      if (permission === 'granted') {
        console.log('Notification permission granted.');
        // TODO(developer): Retrieve a registration token for use with FCM.
        // In many cases once an app has been granted notification permission,
        // it should update its UI reflecting this.
        resetUI();
      } else {
        console.log('Unable to get permission to notify.');
      }
    });
  }