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Web Platform Baseline Status Breakdown Total Features: 1191
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Categories: All CSS (101) HTML elements (98) Selectors (46) JavaScript (43) Forms (40)
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Showing 2 of 2 features

2026

2 features
• March 2026

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.

Chrome 74
Firefox 149
Safari 18.4
Edge 79
Baseline Date: Mar 24, 2026
Newly Available

The Reporting-Endpoints HTTP header and ReportingObserver() API send selected reports, such as Content Security Policy (CSP) violation reports or crash reports, to a nominated URL or callback function.

Chrome 96
Firefox 149
Safari 16.4
Edge 96
Baseline Date: Mar 24, 2026