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The referrer read-only property of the Request interface is set by the user agent to be the referrer of the Request. (e.g., about:client, no-referrer, or a URL.)
Note: If referrer's value is no-referrer, it returns an empty string.
Syntax
var myReferrer = request.referrer;
Value
A DOMString representing the request's referrer.
Example
In the following snippet, we create a new request using the Request.Request() constructor (for an image file in the same directory as the script), then save the request referrer in a variable:
var myRequest = new Request('flowers.jpg');
var myReferrer = myRequest.referrer; // returns "about:client" by default
Specifications
| Specification | Status | Comment |
|---|---|---|
| Fetch The definition of 'referrer' in that specification. |
Living Standard | Initial definition |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 42 41[1] |
(Yes) | 47 (47) | No support |
29 |
No support |
| Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | (Yes) | No support | No support | No support | No support | No support | No support |
[1] This feature is implemented behind a preference.