HTMLImageElement.fetchpriority

The fetchpriority property of the HTMLImageElement interface represents a hint given to the browser on how it should prioritize the fetch of the image relative to other images.

Value

A DOMString representing the priority hint. Possible values are:

  • high: Fetch the image at a high priority relative to other images.
  • low: Fetch the image at a low priority relative to other images.
  • auto: Default mode, which indicates no preference for the fetch priority. The browser decides what is best for the user.

The fetchpriority property allows you to signal high or low priority image fetches. This can be useful when applied to <img> elements to signal images that are "important" to the user experience early in the loading process.

The effects of the hint on resource loading is browser-specific so make sure to test on multiple browser engines.

Use it sparingly for exceptional cases where the browser may not be able to infer the best way to load the image automatically. Over use can result in degrading performance.

Examples

var img = new Image();
img.fetchpriority = 'high';
img.src = 'img/logo.png';

Specifications

No specification found

No specification data found for api.HTMLImageElement.fetchpriority.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.

Browser compatibility

No compatibility data found for api.HTMLImageElement.fetchpriority.
Check for problems with this page or contribute missing data to mdn/browser-compat-data.