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HTML Audio/Video DOM progress Event

❮ HTML Audio/Video DOM Reference


Alert that the video is downloading:

var vid = document.getElementById("myVideo");
vid.onprogress = function() {
    alert("Downloading video");
Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The progress event occurs when the browser is downloading the specified audio/video.

During the loading process of an audio/video, the following events occur, in this order:

  1. loadstart
  2. durationchange
  3. loadedmetadata
  4. loadeddata
  5. progress
  6. canplay
  7. canplaythrough

Browser Support

The numbers in the table specify the first browser version that fully supports the event.

progress Yes 9.0 Yes Yes Yes



<audio|video onprogress="myScript">Try it

In JavaScript:

audio|video.onprogress=function(){myScript};Try it

In JavaScript, using the addEventListener() method:

audio|video.addEventListener("progress", myScript);Try it

Technical Details

Supported HTML tags: <audio> and <video>
Supported JavaScript objects: Audio, Video

More Examples


Alert that the audio is downloading:

var aud = document.getElementById("myAudio");
aud.onprogress = function() {
    alert("Downloading audio");
Try it Yourself »

❮ HTML Audio/Video DOM Reference