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  <meta charset=UTF-8>



  <meta name=viewport content="width=device-width,initial-scale=1">



  <title>oncanplaythrough — inline on video</title>



  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}video{display:block;max-width:100%;width:320px;border-radius:8px;background:#0f172a;margin-bottom:.75rem}.status{padding:.75rem 1rem;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;font-size:.8125rem;max-width:420px}code{background:#e2e8f0;padding:.1rem .35rem;border-radius:4px}</style>



</head>



<body>



  <h1>oncanplaythrough on video</h1>



  <p>The browser estimates enough data is buffered to play through without stopping.</p>



  <video controls oncanplaythrough=handleCanPlayThrough()>



    <source src=/video/count.mp4 type=video/mp4>



    Your browser does not support video.



  </video>



  <div class=status id=status>Loading video…</div>





  <script>function handleCanPlayThrough(){document.getElementById("status").innerHTML="<strong>canplaythrough fired!</strong> Enough buffered — playback should not pause for loading."}</script>



</body>



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HTML oncanplaythrough Attribute — Inline Handler on video