Remote Start

<script>
  function startApplication() {
    if (!window.runApplication) {
      window.onApplicationPrepared = function() {
        window.runApplication();
      }
    } else {
      window.runApplication();
    }
  }

  (function() {
    window.DISABLE_AUTOLOAD = true;

    // Performing some request needed
    return fetch('https://example.com')
      .then(response => response.json())
      .then(data => {
        // Make something with data, e.g. put to global variables

        startApplication();
      })
      .catch(() => {
        startApplication();
      });
  })();
</script>