Some iphone device not able play audio browser jquery

Question

My jquery audio script perfecly play audio, but some iphone device has no audio playing, can anyone tell me the problem,

 <script src="https://cdnjs.cloudflare.com/ajax/libs/howler/2.2.1/howler.min.js" integrity="sha512-L6Z/YtIPQ7eU3BProP34WGU5yIRk7tNHk7vaC2dB1Vy1atz6wl9mCkTPPZ2Rn1qPr+vY2mZ9odZLdGYuaBk7dQ==" crossorigin="anonymous"></script>   

let autoplay = true;
    let soundID;
    var sound = new Howl({
        src: ['<?php echo base_url(); ?>assets/mp3/<?php echo $nama_musik; ?>'],
        autoplay: autoplay,
        loop: true,
    });

    soundID = sound.play();