<!DOCTYPE html>
<html>
  <head>
    <style>
      #lottie {
        width:400px;
        height:400px;
      }
    </style>
    <script type="text/javascript">
      // Check if creating lottie-player creates a natively supported element by checking presence
      // of 'autoplay' attribute.
      if(typeof document.createElement('lottie-player').autoplay == 'undefined') {
        window.onload = function() {
          var script = document.createElement('script');
          script.src = "https://unpkg.com/@lottiefiles/lottie-player@0.5.1/dist/lottie-player.js";
          document.getElementsByTagName('head')[0].appendChild(script);
        }
      }
    </script>
  </head>
  <body>
    <lottie-player id="lottie" autoplay loop src="white_material_wave_loading.json"></lottie-player>
  </body>
</html>