SecurityPolicyViolationEvent.referrer

Experimental: 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
Content Security Policy Level 3 (Content Security Policy 3) # dom-securitypolicyviolationevent-referrer

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
`referrer`	41	15	63	No	28	10	41	41	63	28	10	4.0