This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The HTMLImageElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <img> element defining which referrer is sent when fetching the resource.
refStr = imgElt.referrerPolicy; imgElt.referrerPolicy = refStr;
"no-referrer" meaning that the Referer: HTTP header will not be sent."origin" meaning that the referrer will be the origin of the page, that is roughly the scheme, the host and the port."unsafe-url" meaning that the referrer will include the origin and the path (but not the fragment, password, or username). This case is unsafe as it can leak path information that has been concealed to third-party by using TLS.var img = new Image();
img.src = 'img/logo.png';
img.referrerPolicy = 'origin';
var div = document.getElementById('divAround');
div.appendChild(img); // Fetch the image using the origin as the referrer
| Specification | Status | Comment |
|---|---|---|
| Referrer Policy The definition of 'referrerPolicy attribute' in that specification. | Editor's Draft | Added the referrerPolicy property. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 51 | ? | 50.0 (50.0) [1] | ? | 38 | ? |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 51 | 51 | 50.0 (50.0) [1] | ? | ? | ? |
[1] From Firefox 45 to 50, this was behind the network.http.enablePerElementReferrer preference. From Firefox 42 to 44 include this property was called referrer.
HTMLAnchorElement.referrerPolicy, HTMLAreaElement.referrerPolicy, and HTMLIFrameElement.referrerPolicy.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/referrerPolicy