Relap + Adfox

<div class="js-relap-adhoc-anchor" data-relap-id="%id_виджета%"></div>
<script>
(function() {
  var widgetId = '%id_виджета%';
  var token = '%токен%';
  var url = '%url%';
  try {
    url = window.top.location.href;
  } catch (e) {
    console.log(e);
    console.log('Can\'t get top window url, use fallback', url);
  }
  var w = window;
  var d = w.document;
  w.relapTasks = w.relapTasks || [];
  w.relapTasks.push(function(api) {
    function addWidget() {
      var anchorEl = d.querySelector('.js-relap-adhoc-anchor[data-relap-id="' + widgetId + '"]');
      if (!anchorEl) {
        console.log('no anchor el found, exit');
        return;
      }
      anchorEl.className = '';
      api.addWidget({
        cfgId: widgetId,
        anchorEl: anchorEl,
        events: {
          onNoContent: function(obj) {
            anchorEl.remove();
          },
        },
      });
    }
    if (api.isReady) return addWidget();
    api.init({
        token: token,
        url: window.top ? window.top.location.href : '%url%',
      })
      .then(addWidget);
  });
  if (!d.querySelector('.relap-runtime-iframe')) {
    var f = d.createElement('iframe');
    f.className = 'relap-runtime-iframe';
    f.style = 'position:absolute;top:-9999px;left:-9999px;visibility:hidden;';
    f.srcdoc = '<script src="https://relap.io/v7/relap.js"></script>';
    d.body.appendChild(f);
  }
})();
</script>