HTMLMediaElement: canplaythrough event

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The canplaythrough event is fired when the user agent can play the media, and estimates that enough data has been loaded to play the media up to its end without having to stop for further buffering of content.

Bubbles No
Cancelable No
Interface Event
Target Element
Default Action None
Event handler property GlobalEventHandlers.oncanplaythrough
Specification HTML5 media


These examples add an event listener for the HTMLMediaElement's canplaythrough event, then post a message when that event handler has reacted to the event firing.

Using addEventListener():

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

video.addEventListener('canplaythrough', (event) => {
  console.log('I think I can play through the entire ' + '
      video without ever having to stop to buffer.');

Using the oncanplaythrough event handler property:

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

video.oncanplaythrough = (event) => {
  console.log('I think I can play thru the entire ' + '
      video without ever having to stop to buffer.');


Specification Status
HTML Living Standard
The definition of 'canplaythrough media event' in that specification.
Living Standard
The definition of 'canplaythrough media event' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
canplaythrough eventChrome Full support 3Edge Full support YesFirefox Full support 3.5IE Full support 9Opera Full support 10.5Safari Full support 3.1WebView Android Full support YesChrome Android Full support 18Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support  
Full support

See Also