This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The referrer read-only property of the SecurityPolicyViolationEvent interface is a USVString representing the referrer of the resources whose policy was violated. This will be a URL or null.
Syntax
let referrer = violationEventInstance.referrer;
Value
A USVString representing the URL of the referrer of the violating resources.
Example
document.addEventListener("securitypolicyviolation", (e) => {
console.log(e.referrer);
});
Specifications
| Specification | Status | Comment |
|---|---|---|
| Content Security Policy Level 3 The definition of 'referrer' in that specification. |
Working Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome Full support Yes | Edge Full support 15 | Firefox
Full support
63
| IE No support No | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android
Full support
63
| Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- User must explicitly enable this feature.
- User must explicitly enable this feature.