mini-example-of-case
/
index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" />
    <title></title>
    <!--preload-links-->
    <!--app-context-->
  </head>
  <body>
    <div id="app"><!--app-html--></div>
    <script type="module" src="/main.js"></script>
  </body>
</html>