index.html

<!-- page-encryptor (https://github.com/steinbro/page-encryptor)
Copyright (c) 2019 Daniel W. Steinbrook -->
<html>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js"></script>
    <script src="data.js"></script>

    <script type="text/javascript">
        if (typeof data != 'undefined') {
            var decoded = null;
            while (decoded === null) {            
                var passphrase = prompt("Site password:")
                try {
                    var decrypted = CryptoJS.AES.decrypt(data, passphrase);
                    decoded = decrypted.toString(CryptoJS.enc.Utf8);
                } catch {
                }
            }
            document.write(decoded);
        } else {
            document.write('No content found.')
        }
    </script>
</html>    