HTMLImageElement: attributionSrc property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The attributionSrc property of the HTMLImageElement interface that you want the browser to send an Attribution-Reporting-Eligible header along with the image request. It reflects the <img> element's attributionsrc content attribute.
See the Attribution Reporting API for more details.
Value
A string that is either empty or a space-separated list of URLs. For the interpretation of this attribute, see the HTML <img> reference.
Examples
Setting an empty attributionSrc
<img src="advertising-image.png" />
const imgElem = document.querySelector("img");
imgElem.attributionSrc = "";
Setting an attributionSrc containing URLs
<img src="advertising-image.png" />
// encode the URLs in case they contain special characters
// such as '=' that would be improperly parsed.
const encodedUrlA = encodeURIComponent("https://a.example/register-source");
const encodedUrlB = encodeURIComponent("https://b.example/register-source");
const imgElem = document.querySelector("img");
imgElem.attributionSrc = `${encodedUrlA} ${encodedUrlB}`;
Specifications
| Specification |
|---|
| Attribution Reporting # dom-htmlattributionsrcelementutils-attributionsrc |