swagger-ui/dist/o2c.html

<script>
var qp = null;
if(window.location.hash) {
  qp = location.hash.substring(1);
}
else {
  qp = location.search.substring(1);
}
qp = qp ? JSON.parse('{"' + qp.replace(/&/g, '","').replace(/=/g,'":"') + '"}',
  function(key, value) {
    return key===""?value:decodeURIComponent(value) }
  ):{}

if (window.opener.swaggerUi.tokenUrl)
    window.opener.processOAuthCode(qp);
else
    window.opener.onOAuthComplete(qp);

window.close();
</script>