JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id="my_iframe" style="display:none;"></iframe>
<div class="image">
    <img src="/image.png" />             
    <a href="#">download</a>
</div>

JavaScript

$(document).ready(function() {
	$('a').on('click', function(e) {
  	var src = ($(e.currentTarget).closest('.image').find('img')[0].src);
    $(e.currentTarget).attr('download', src);
    $(e.currentTarget).click();
  });
});