title: Where can we find the sound support for Push Notification on PWA?
body: <p>I'm trying to implement push notification on my PWA, until now everything works well except the sound.</p>
  <p>I saw sound is supported in this <a href="https://developers.google.com/web/fundamentals/push-notifications/display-a-notification" rel="nofollow noreferrer">Google Tutorial about Push Notification</a>, but later on the same page, it states that no browser supports it right now and the article doesn't have a post date.</p>
  <p>So just wondering where can I find an update to date update about the support for sound in Push Notification for PWA?</p>