🏠 New in Low Baseline Support: CSP violation reports

March 24, 2026

caniuse · mdn · spec

CSP violation reporting sends a report to a URL nominated by the Reporting-Endpoints header or the ReportingObserver API when a page violates its content security policy.

Source features

• http.headers.Content-Security-Policy.report-to [mdn]
• api.ReportingObserver.ReportingObserver.options_parameter.types_property.csp-violation [mdn]