The mediaElement.play() method returns a promise that is rejected

Question

I can't play my video on mobile Browsers. When using Safari Remote Debugging, i get the following issue:

Unhandled Promise Rejection: AbortError: The operation was aborted.

I find this solution: https://developers.google.com/web/updates/2017/06/play-request-was-interrupted

But i don't know, how can i use it in my code to fix the problem.

<video muted id="video" class="absolute right-0 bottom-0 min-w-full min-h-full w-auto" controls>
    <source src="/path/to/video.mp4" type="video/mp4">
</video>

let video = document.getElementbyId('video');
let video_cta = document.getElementbyId('video_cta');

//this doesn't fix my problem
var videoPromise = video.play();

if (videoPromise != undefined) {
    videoPromise.then(function(_) {
      video.pause();
      video.currentTime = 0;
  });
}

//start video after click the button
video_cta.addEventListener('click' function() {
    video.play()
})

Answer 1

• First thing is that autoplay attribute is needed.

  <video src='...' controls mutedautoplay></video>

• When videoPromise is the reference to the video and call to the .play() method, it will work within a Promise.

  const videoPromise = document.querySelector('video').play();

• Also there is a dependency in OP code .getElementById() was misspent:

  let video = document.getElementbyId('video');
let video_cta = document.getElementbyId('video_cta');

• The Google article provided in OP also mentions that the <source> tag will not handle a reject properly:

  Use

  <video src='...'></video>

  Not

  <video> <source src='...'> </video>

• This should stop the error message:

  Unhandled Promise Rejection: AbortError: The operation was aborted.

Demo 1 uses a Promise and method .then(). Demo 2 uses async/await. The async function is wrapped in an IIFE (Immediately Invoked Function Expression)

Demo 1

Promise

let cta = document.querySelector('#cta');

const videoPromise = document.querySelector('video').play();

if (videoPromise != undefined) {
  videoPromise.then(_ => {
video.play();
  });
}

cta.addEventListener('click', function() {
  video.play();
});

<video src="https://storage04.dropshots.com/photos6000/photos/1381926/20170326/005609.mp4" id="video" class="absolute right-0 bottom-0 min-w-full min-h-full w-auto" controls autoplay muted></video>
<button id='cta'>CTA</button>

Demo 2

async/await

let cta = document.querySelector('#cta');

const video = document.querySelector('video');

(function() {
  playMedia();
})();

async function playMedia() {
  try {
    await video.play();
  } catch (err) {}
}

cta.addEventListener('click', function() {
  video.play();
});

<video src="https://storage04.dropshots.com/photos6000/photos/1381926/20170326/005609.mp4" id="video" class="absolute right-0 bottom-0 min-w-full min-h-full w-auto" controls autoplay muted></video>
<button id='cta'>CTA</button>