toddwelstein.github.io/iframe.html at main · toddwelstein/toddwelstein.github.io · GitHub

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<!doctype html>
<html class="no-js" lang="">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title></title>
  <link rel="stylesheet" href="css/style.css">
  <meta name="description" content="">

  <meta property="og:title" content="">
  <meta property="og:type" content="">
  <meta property="og:url" content="">
  <meta property="og:image" content="">
  <meta property="og:image:alt" content="">

  <link rel="icon" href="/favicon.ico" sizes="nany">
  <link rel="icon" href="/icon.svg" type="image/svg+xml">
  <link rel="apple-touch-icon" href="icon.png">

  <link rel="manifest" href="site.webmanifest">
  <meta name="theme-color" content="#fafafa">
</head>

<body>

  <!-- Add your site or application content here -->
  <p>Hello world! This is HTML5 Boilerplate.</p>
  <script>
    debugger;

    console.log('parent window ', window.parent);

    document.addEventListener('DOMContentLoaded', function() {
              window.addEventListener('message', (event) => {
                  if (event.origin !== 'https://www-s1.npr.org') {
                    return;
                  }

                  console.log('This is from the iframe - Message received:', event);
              });

              window.parent.postMessage('Hello from iframe', 'https://www-s1.npr.org');
    });

  </script>

</body>

</html>