The HTMLAreaElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <area> element defining which referrer is sent when fetching the resource.
HTMLAreaElement: referrerPolicy property
Value
A string; one of the following:
-
no-referrer -
The
Refererheader 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.htmlwill send the referrerhttps://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/logo@2x.png" />
<map id="myMap" name="mapAround" />>
js
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 |
See also
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLAreaElement/referrerPolicy