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Permissions policy violation reportingLimited availability

Permissions policy violation reporting sends a report to a URL nominated by the Reporting-Endpoints header or the ReportingObserver API when a page violates a policy. You can also use the Permissions-Policy-Report-Only header to receive reports of what might break under a given policy.

Not yet supported in all major browsers — check the table and provide a fallback.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–119Not supported
120+Supportedsince Dec 5, 2023
Current: 155
Edge
12–119Not supported
120+Supportedsince Dec 7, 2023
Current: 154
Firefox
✕Not supportedup to 157
Current: 157
Safari
✕Not supportedup to 27
Current: 27
MobileChrome Android
18–119Not supported
120+Supportedsince Dec 5, 2023
Current: 155
Firefox Android
✕Not supportedup to 157
Current: 157
Safari iOS
✕Not supportedup to 27
Current: 27

How to use

Not supported in Firefox, Safari, Firefox Android, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.

Example

Full syntax and examples are on MDN — see the links below.

Feature detection

JS · check before using
if ("ReportingObserver" in globalThis && "ReportingObserver" in ReportingObserver.prototype) {
  // ReportingObserver.ReportingObserver is available
}

Specification