I have started receiving opt-out error messages from users who try opting out of bulk mailing. This only happens if user views email following the {mailing.viewUrl} token. The opt-out link works if it is used from an email client. When user uses the {mailing.viewUrl} the opt-out uRL is stripped and the final part looks like this "....civicrm/mailing/optout?reset=1&jid=&qid=&h="
Has anyone experienced this issue or do you know how to resolve? I am attaching a screenshot of the error message. I running Drupal 7.70 and CiviCRM 5.21 - thank you for helping out
