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<!DOCTYPE html>
<html>
<script>
function handleLoaded() {
// The media controls should be updated on the next runloop.
setTimeout(function() {
try {
window.webkit.messageHandlers.onloadHandler.postMessage("loaded");
} catch(e) { }
}, 0);
}
function handleCanPlayThrough(event) {
event.target.canPlayThrough = true;
}
</script>
<body onload=handleLoaded()>
<video id="foo" style="width: 480px; height: 320px;"><source src="large-video-with-audio.mp4"></video>
<video id="bar" style="width: 480px; height: 320px;"><source src="large-video-with-audio.mp4"></video>
<video id="baz" style="width: 480px; height: 320px;"><source src="large-video-with-audio.mp4"></video>
<script>
[...document.querySelectorAll("video")].map(video => {
video.canPlayThrough = false;
video.addEventListener("canplaythrough", handleCanPlayThrough);
});
</script>
</body>
<html>
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