``` whistle.nohost/inject.html

<script>
  (function() {
    if (typeof window === 'undefined' || !window || window.self !== window.top
    || window.__whistle_nohost_from_imweb_is_inited__) {
      return;
    }
    window.__whistle_nohost_from_imweb_is_inited__ = true;
    var head = document.head || document.getElementsByTagName('head')[0] || document.documentElement;
    var script = document.createElement('script');
    script.async = true;
    script.charset = 'utf8';
    script.src = '/.whistle-path.5b6af7b9884e1165/whistle.nohost/button.js';
    if (head.firstChild) {
      head.insertBefore(script, head.firstChild);
    } else {
      head.appendChild(script);
    }
  })();
</script>
```

``` whistle.nohost/none.html
<script>
  window.__whistle_nohost_from_imweb_is_inited__ = true;
</script>
```