title: Dynamic preload of Audio elements
body: <p>On initial page load, there are audio elements on the page which have <code>preload="metadata"</code>. Dynamically, I update that preload attribute to <code>"Auto"</code>, and I am wondering, does it actually preload the audio file when doing it this way? (or if you don't know maybe you know of a way I can verify it?)</p>