title: Unhandled Rejection (SecurityError): The operation is insecure. On a fresh create-react-app project
body: <p>I created a new project with create-react-app then ran npm start then this showed up.
  <a href="https://imgur.com/a/3By9NCr" rel="noreferrer">https://imgur.com/a/3By9NCr</a></p>
  
  <p>Using FF 69.0.3</p>