title: Flask-dance Google oauth setup issue with pythonanywhere
body: <p>I am trying to set up Google login for my webapp with Flask-dance. The problem is with setting the 'Authorized redirect uri' in the Google Developer's console as <code>https://moneycare.pythonanywhere.com/google/authorized</code>. I get an error 'Invalid Redirect: must use a domain that is a valid top private domain'. This is happening only with PythonAnywhere domain. If switch the url with something like <code>https://moneycare.herokuapp.com/google/authorized</code> then the error does not appear.</p>
  <p>Any idea why this is happening?
  Thanks.</p>