html5 audio hide download button

I Use the code below to play .mp3 files in a company portal (asp.net webform).

 <audio id="player" style="margin-top:10px;margin-bottom:10px" src="audio/aaa.mp3" controls loop autoplay></audio>

Everything works fine, but when I use chrome a download button is visible within the audio controls.

How can I hide or disable the download button, without disable the other controls?

Thanks.

Solution

Google added a new feature since chrome 58. Now you can do this :

<audio width="400" height="38" controls controlsList="nodownload">
    <source data-src="...." type="audio/mpeg">
</audio>

More info here