message: Console log more helpfully
  Appending objects to strings isn't really useful
diff: @@ -233,7 +233,7 @@ function _registerAsGuest(hsUrl, isUrl, defaultDeviceDisplayName) {
  guest: true,
  }, true).then(() => true);
  }, (err) => {
  - console.error("Failed to register as guest: " + err + " " + err.data);
  + console.error("Failed to register as guest", err);
  return false;
  });
  }
  