Element: securitypolicyviolation event
The securitypolicyviolation
event is fired when a Content Security Policy is violated.
The event is fired on the element that violates the policy and bubbles.
It is normally handled by an event handler on the Window
or Document
object.
The handler can be assigned using the onsecuritypolicyviolation
property or using EventTarget.addEventListener()
.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("securitypolicyviolation", (event) => {});
onsecuritypolicyviolation = (event) => {};
Event type
A SecurityPolicyViolationEvent
. Inherits from Event
.
Examples
The code below shows how you might add an event handler function using the onsecuritypolicyviolation
global event handler property or addEventListener()
on the top level Window
(you could use exactly the same approach on Document
).
window.onsecuritypolicyviolation = (e) => {
// Handle SecurityPolicyViolationEvent e here
};
window.addEventListener("securitypolicyviolation", (e) => {
// Handle SecurityPolicyViolationEvent e here
});
Specifications
Specification |
---|
Content Security Policy Level 3 # eventdef-globaleventhandlers-securitypolicyviolation |
HTML Standard # handler-onsecuritypolicyviolation |
Browser compatibility
BCD tables only load in the browser
See also
- The
securitypolicyviolation
event of theDocument
interface - The
securitypolicyviolation
event of theWorkerGlobalScope
interface - HTTP > Content Security Policy