Forward user to a Thank You Page, but return to previous page when cancelling the survey - https://fneve.blogspot.com/2017/04/sharepoint-survey-forward-user-to-thank.html

RedirectOrReturnSnippet.html

<script src="/sitecollection/site/SiteAssets/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
      $('input[value=Cancel]').click(function() {history.go(-1);});
    });
 </script>