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HTMLAreaElement: referrerPolicy property

The HTMLAreaElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <area> element defining which referrer is sent when fetching the resource.

Value

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.HTTP→HTTP, HTTPS→HTTPS), but isn't sent to a less secure destination (e.g. HTTPS→HTTP).
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. HTTPS→HTTPS), but don't send it to a less secure destination (e.g. HTTPS→HTTP).
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. HTTPS→HTTPS), and send no header to a less secure destination (e.g. HTTPS→HTTP).
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.

Examples

html

<img usemap="#mapAround" width="100" height="100" src="/img/[email protected]" />
<map id="myMap" name="mapAround" />>

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.

Specifications

Specification
HTML Standard # dom-area-referrerpolicy

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`referrerPolicy`	5251–52	79	50	No	3938–39	14.1	5251–52	5251–52	50	41	14.5	6.05.0–6.0
`no-referrer-when-downgrade`	52	79	61–92	No	39	No	52	52	61–92	41	No	6.0
`origin-when-cross-origin`	52	79	61–92	No	39	No	52	52	61–92	41	No	6.0
`unsafe-url`	52	79	61–92	No	39	No	52	52	61–92	41	No	6.0

Value

Examples

Specifications

Browser compatibility

See also