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Home/ Questions/Uncaught In Promise DOM Exception Failed To Load Because No Supported Source Was Found
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Jael Li
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Jael Li
Asked: April 30, 20222022-04-30T01:18:39+00:00 2022-04-30T01:18:39+00:00In: javascript

Uncaught In Promise DOM Exception Failed To Load Because No Supported Source Was Found

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Anyone can help me to solve Uncaught (in promise) DOMException: Failed to load because no supported source was found.?

Here is my code:

<script>
window.onload = function () { document.getElementById("audio").play(); }
window.addEventListener("load", function () { document.getElementById("audio").play(); });
</script>

<body>
<audio id='audio' controls autoplay>
<source src="Sounds/Myaudio.wav" type="audio/wav" />
The browser you are using does not support audio
</audio>
</body>
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  1. Best Answer
    Rocco Li
    2022-04-28T17:18:41+00:00Added an answer on April 28, 2022 at 5:18 pm

    Take a look at this code, it will help you

    var playPromise = document.querySelector('video').play();
    ​
    // In browsers that don’t yet support this functionality,
    // playPromise won’t be defined.
    if (playPromise !== undefined) {
      playPromise.then(function() {
        // Automatic playback started!
      }).catch(function(error) {
        // Automatic playback failed.
        // Show a UI element to let the user manually start playback.
      });
    }
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  2. cassidymuller
    2022-04-30T09:04:43+00:00Added an answer on April 30, 2022 at 9:04 am

    To fix error “Uncaught (in promise) DOMException: Failed to load because no supported source was found” try with this catch block

    document.getElementById("audio").play().catch(function() {
        // playback failed, let do something for users
    });
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