< HTML Audio/Video DOM Reference
Example
Start loading the video as soon as the page loads:
var vid = document.getElementById("myVideo");
vid.preload = "auto";
Try it Yourself »
Definition and Usage
The preload property sets or returns whether the audio/video should start loading as soon as the page loads.
The preload property allows the author to provide a hint to the browser about what he/she thinks will lead to the best user experience. This attribute may be ignored in some instances.
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| preload | Yes | 9.0 | 4.0 | Yes | Yes |
Syntax
Return the preload property:
audio|video.preload
Set the preload property:
audio|video.preload="auto|metadata|none"
Property Values
| Value | Description |
|---|---|
| auto | Indicates that the audio/video should start loading as soon as the page loads |
| metadata | Indicates that only the metadata for the audio/video should be loaded when the page loads |
| none | Indicates that the audio/video should NOT start loading as soon as the page loads |
Technical Details
| Return Value: | A String, representing what data should be preloaded (if any). Possible return values are "auto", "metadata", or "none". See "Property Values" for what the values mean |
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