Web/API/HTMLMediaElement/networkState

The HTMLMediaElement.networkState property indicates the current state of the fetching of media over the network.

Syntax

var networkState = audioOrVideo.networkState;

Value

An unsigned short. Possible values are:

Constant	Value	Description
`NETWORK_EMPTY`	0	There is no data yet. Also, `readyState` is `HAVE_NOTHING`.
`NETWORK_IDLE`	1	HTMLMediaElement is active and has selected a resource, but is not using the network.
`NETWORK_LOADING`	2	The browser is downloading HTMLMediaElement data.
`NETWORK_NO_SOURCE`	3	No HTMLMediaElement src found.

Examples

This example will listen for the audio element to begin playing and then check if it is still loading data.

<audio id="example" preload="auto">
 <source src="sound.ogg" type="audio/ogg" />
</audio>

var obj = document.getElementById('example');

obj.addEventListener('playing', function() {

  if (obj.networkState === 2) {
    // Still loading...
  }

});

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'HTMLMediaElement.networkState' in that specification.	Living Standard
HTML5The definition of 'HTMLMediaElement.networkState' in that specification.	Recommendation

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`networkState`	Chrome Full support 43	Edge Full support 12	Firefox Full support 3.5 Notes' Full support 3.5 Notes' Notes' The `NETWORK_LOADED` state was removed to align with the HTML spec in Firefox 4.	IE Full support 9	Opera Full support Yes	Safari Full support 6	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support: Full support
See implementation notes.': See implementation notes.