title: Firestore web Could not reach firestore backend
body: <p>This is the error message : <code>@firebase/firestore: Firestore (4.12.1): Could not reach Firestore backend</code></p>
  
  <p>I am building a web app and it was working fine today and after a couple of login / logouts , I started receiving this error message. I have initialized the firestore config again and the problem persists. same error message was being thrown with firestore 4.11.0 version. </p>