SecurityPolicyViolationEvent: lineNumber property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since October 2018.
Note: This feature is available in Web Workers.
The lineNumber read-only property of the SecurityPolicyViolationEvent interface is the line number in the document or worker script at which the Content Security Policy (CSP) violation occurred.
Value
A number representing the line number at which the violation occurred.
Examples
js
document.addEventListener("securitypolicyviolation", (e) => {
console.log(e.lineNumber);
});
Specifications
| Specification |
|---|
| Content Security Policy Level 3 # dom-securitypolicyviolationevent-linenumber |