Add Report-To API (Intervention Reports)

[yvele]

Report-To HTTP Response Header Field

• Spec: https://w3c.github.io/reporting/#header (source)
• OWP launch tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=676016
• Google Platform Status: https://www.chromestatus.com/feature/5544632075157504
• A.K.A. Intervention Reports
• Simple overwiew: https://docs.report-uri.com/setup/reporting-api/

Not to be confused with report-to directive specific to CSP (spec and doc)

Maybe dissociate Report-To API and Header Field support?

@ScottHelme CC

Edit: Report-To is related to NEL (Network Error Logging) HTTP Response Header Field

• Spec: https://www.w3.org/TR/network-error-logging/
• Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=748549
• Google Platform Status: https://www.chromestatus.com/feature/5391249376804864
• Issues: https://github.com/w3c/network-error-logging/issues
• Doc: https://developers.google.com/web/updates/2018/09/reportingapi#nel

[ScottHelme]

Thanks for the cc @yvele. Is there a bug for NEL support too?

[yvele]

@ScottHelme sure

• Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=748549
• Google Platform Status: https://www.chromestatus.com/feature/5391249376804864

[xPaw]

The Report-To header in the spec was changed to Reporting-Endpoints