AES encryption in JavaScript

decryptaes.js

<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.1.1/crypto-js.min.js"></script>
<script>
//JS FIX IV ENCRYPTION CBC
var message = 'I love Medium';
var key ='AAAAAAAAAAAAAAAA'//key used in Python
key = CryptoJS.enc.Utf8.parse(key);
var iv = CryptoJS.enc.Utf8.parse('BBBBBBBBBBBBBBBB')
var encrypted = CryptoJS.AES.encrypt(message, key, { iv: iv, mode: CryptoJS.mode.CBC});
encrypted =encrypted.toString();
console.log('encrypted',encrypted );
alert(encrypted)

//JS RANDOM IV ENCRYPTION CBC
var iv = CryptoJS.enc.Hex.parse("101112131415161718191a1b1c1d1e1f");
var encrypted = CryptoJS.AES.encrypt(message, key, { iv: iv, mode: CryptoJS.mode.CBC});
encrypted =encrypted.toString();
console.log('encrypted',encrypted );
alert(encrypted)

//JS ENCRYPTION ECB
var encrypted = CryptoJS.AES.encrypt(message, key, {mode: CryptoJS.mode.ECB});
encrypted =encrypted.toString();
console.log('encrypted',encrypted );
alert(encrypted)
</script>