index.html

<!DOCTYPE html>

<html lang="en">
  <head>
    <meta charset="utf-8" />

    <title></title>
    <meta name="description" content="" />
    <meta name="author" content="" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <!-- Style dependencies -->
    <link href="https://unpkg.com/normalize.css@^7.0.0" rel="stylesheet" />
    <!-- Blueprint stylesheets -->
    <link
      href="https://unpkg.com/@blueprintjs/icons@^3.4.0/lib/css/blueprint-icons.css"
      rel="stylesheet"
    />
    <link
      href="https://unpkg.com/@blueprintjs/core@^3.10.0/lib/css/blueprint.css"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="/assets/style.css" />
  </head>

  <body>
    <script>
      global = globalThis // HACK
    </script>
    <script src="/index.js" type="module"></script>
    <div id="App"></div>
  </body>
</html>