HTMLLinkElement: imageSrcset property

Baseline 2023

Newly available

Since December 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

See full compatibility

The imageSrcset property of the HTMLLinkElement interface is a string which identifies one or more comma-separated image candidate strings. This property reflects the value of the <link> element's imagesrcset attribute. This property can retrieved or set the imagesrcset attribute value.

Each image candidate string contains an image URL and an optional width and/or pixel density descriptor indicating the conditions under which that candidate image should be used.

"images/team-photo.jpg, images/team-photo-retina.jpg 2x, images/team-photo-large.jpg 1400w"

For HTML <link> elements with rel="preload" and as="image" set, the imagesrcset attribute has similar syntax and semantics as the <img> element's srcset attribute, which indicates to preload the appropriate resource used by an <img> element with corresponding values for its srcset and sizes attributes.

If the imageSrcset property includes width descriptors, the imageSizes property must be non-null, or the imageSrcset value will be ignored.

Value

A string composed of a comma-separated list of one or more image candidate strings, or the empty string "" if unspecified..

Examples

Given the following <link> element:

html

<link
  rel="preload"
  as="image"
  imagesizes="50vw"
  imagesrcset="bg-narrow.png, bg-wide.png 800w" />

<pre id="log"></pre>

#log {
  padding: 0 0.25rem;
  font-size: 1.2em;
  line-height: 1.4;
}

const logElement = document.querySelector("#log");
function log(text) {
  logElement.innerText = `${logElement.innerText}${text}\n`;
  logElement.scrollTop = logElement.scrollHeight;
}

…we can access the imagesrcset attribute value, and update it, using the imageSrcset property:

const link = document.querySelector("link");
log(`Original: ${link.imageSrcset}`);

// add an image candidate string
link.imageSrcset += ", bg-huge.png 1200w";
log(`Updated: ${link.imageSrcset}`);

Specifications

Specification
HTML # dom-link-imagesrcset

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`imageSrcset`	Chrome – Full support Chrome 73 (Release date: 2019-03-12) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 78 (Release date: 2020-06-30) footnote Full support	Opera – Full support Opera 60 (Release date: 2019-04-09) footnote Full support	Safari – Full support Safari 17.2 (Release date: 2023-12-11) footnote Full support	Chrome Android – Full support Chrome Android 73 (Release date: 2019-03-12) footnote Full support	Firefox for Android – Full support Firefox for Android 79 (Release date: 2020-07-28) footnote Full support	Opera Android – Full support Opera Android 52 (Release date: 2019-05-17) footnote Full support	Safari on iOS – Full support Safari on iOS 17.2 (Release date: 2023-12-11) footnote Full support	Samsung Internet – Full support Samsung Internet 11 (Release date: 2019-12-05) footnote Full support	WebView Android – Full support WebView Android 73 (Release date: 2019-03-12) footnote Full support	WebView on iOS – Full support WebView on iOS 17.2 (Release date: 2023-12-11) footnote Full support

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Full support: Full support

HTMLLinkElement: imageSrcset property

Value

Examples

Specifications

Browser compatibility

Legend

See also