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kidcoder-editor-custom
/
son.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <button onclick="send()">send</button>
    <iframe
      id="python"
      src="http://192.168.10.113:8000/index.html"
      frameborder="0"
      width="100%"
      height="1080px"
    ></iframe>
  </body>
</html>
<script>
  const send = () => {
    const python = document.getElementById("python").contentWindow;
    python.postMessage("hello", "http://192.168.10.113:8000/index.html");
  };
</script>