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 August 2016.

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

Browser compatibility

BCD tables only load in the browser

See also