SecurityPolicyViolationEvent: columnNumber 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 columnNumber read-only property of the SecurityPolicyViolationEvent interface is the character position in the source file line of the document or worker script at which the Content Security Policy (CSP) violation occurred.

This property is used with the SecurityPolicyViolationEvent.sourceFile and SecurityPolicyViolationEvent.lineNumber properties, which together provide the exact location in the source that caused the violation.

Value

A number representing the character position number where the violation occurred.

document.addEventListener("securitypolicyviolation", (e) => {
  console.log(e.columnNumber);
});

Specification
Content Security Policy Level 3 # dom-securitypolicyviolationevent-columnnumber

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`columnNumber`	Chrome – Full support Chrome 41 (Release date: 2015-03-03) footnote Full support	Edge – Full support Edge 15 (Release date: 2017-04-05) footnote Full support	Firefox – Full support Firefox 63 (Release date: 2018-10-23) footnote Full support	Opera – Full support Opera 28 (Release date: 2015-03-10) footnote Full support	Safari – Full support Safari 10 (Release date: 2016-09-20) footnote Full support	Chrome Android – Full support Chrome Android 41 (Release date: 2015-03-11) footnote Full support	Firefox for Android – Full support Firefox for Android 63 (Release date: 2018-10-23) footnote Full support	Opera Android – Full support Opera Android 28 (Release date: 2015-03-10) footnote Full support	Safari on iOS – Full support Safari on iOS 10 (Release date: 2016-09-13) footnote Full support	Samsung Internet – Full support Samsung Internet 4 (Release date: 2016-03-11) footnote Full support	WebView Android – Full support WebView Android 41 (Release date: 2015-03-11) footnote Full support	WebView on iOS – Full support WebView on iOS 10 (Release date: 2016-09-13) footnote Full support

Tip: you can click/tap on a cell for more information.