Baseline Widely available *
The HTMLAreaElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <area> element defining which referrer is sent when fetching the resource.
A string; one of the following:
no-referrer
The Referer header will be omitted entirely. No referrer information is sent along with requests.
no-referrer-when-downgrade
The URL is sent as a referrer when the protocol security level stays the same (e.g.HTTPâHTTP, HTTPSâHTTPS), but isn't sent to a less secure destination (e.g., HTTPSâHTTP).
origin
Only send the origin of the document as the referrer in all cases. The document https://example.com/page.html will send the referrer https://example.com/.
origin-when-cross-origin
Send a full URL when performing a same-origin request, but only send the origin of the document for other cases.
same-origin
A referrer will be sent for same-site origins, but cross-origin requests will contain no referrer information.
strict-origin
Only send the origin of the document as the referrer when the protocol security level stays the same (e.g., HTTPSâHTTPS), but don't send it to a less secure destination (e.g., HTTPSâHTTP).
strict-origin-when-cross-origin (default)
This is the user agent's default behavior if no policy is specified. Send a full URL when performing a same-origin request, only send the origin when the protocol security level stays the same (e.g., HTTPSâHTTPS), and send no header to a less secure destination (e.g., HTTPSâHTTP).
unsafe-url
Send a full URL when performing a same-origin or cross-origin request. This policy will leak origins and paths from TLS-protected resources to insecure origins. Carefully consider the impact of this setting.
<img usemap="#mapAround" width="100" height="100" src="/img/logo@2x.png" />
<map id="myMap" name="mapAround"></map>
const elt = document.createElement("area");
elt.href = "/img2.png";
elt.shape = "rect";
elt.referrerPolicy = "no-referrer";
elt.coords = "0,0,100,100";
const map = document.getElementById("myMap");
map.appendChild(elt);
// When clicked, the area's link will not send a referrer header.
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HTML:
3.2
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| Version:
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