WorkerGlobalScope: securitypolicyviolation event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since August 2016.

Note: This feature is only available in Web Workers.

The securitypolicyviolation event is fired when a Content Security Policy is violated in a worker.

The handler can be assigned using the onsecuritypolicyviolation event handler property or using EventTarget.addEventListener().

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("securitypolicyviolation", (event) => {});

onsecuritypolicyviolation = (event) => {};

Event type

A SecurityPolicyViolationEvent. Inherits from Event.

Event SecurityPolicyViolationEvent

Examples

The code below shows how you might add an event handler function using the onsecuritypolicyviolation event handler property or call addEventListener() method.

js
self.onsecuritypolicyviolation = (e) => {
  // Handle SecurityPolicyViolationEvent e here
};

self.addEventListener("securitypolicyviolation", (e) => {
  // Handle SecurityPolicyViolationEvent e here
});

Specifications

Specification
Content Security Policy Level 3
# eventdef-globaleventhandlers-securitypolicyviolation

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
securitypolicyviolation event

See also