Document: securitypolicyviolation event

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

The event is fired on the document when there is a violation of the document CSP policy (and may also bubble from elements in the document).

This event bubbles to the Window object, and is composed.

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

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

onsecuritypolicyviolation = (event) => {};

A SecurityPolicyViolationEvent. Inherits from Event.

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

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

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

• The securitypolicyviolation event of the Element interface
• The securitypolicyviolation event of the WorkerGlobalScope interface
• HTTP > Content Security Policy