COEP and COOP reporting documentation

[hamishwillee]

COOP and COEP use the reporting API to report violations. This adds docs.

• [x] COEPViolationReportBody - report structure for COEP violations
• [ ] COOPViolationReportBody - report structure for COOP violations
• [ ] Update Reporting API docs everywhere to include links to these
• [ ] Cross-Origin-Embedder-Policy-Report-Only - add report-to
• [ ] Cross-Origin-Embedder-Policy - add report-to
• [ ] Cross-Origin-Opener-Policy - add report-to
• [ ] Cross-Origin-Opener-Policy-Report-Only - add report-to
• [ ] BCD everywhere https://github.com/mdn/browser-compat-data/issues/27021

Fixes #39814

[github-actions[bot]]

Preview URLs (13 pages)

• /en-US/docs/Web/API/COEPViolationReportBody/blockedURL
• /en-US/docs/Web/API/COEPViolationReportBody/disposition
• /en-US/docs/Web/API/COEPViolationReportBody/type
• /en-US/docs/Web/API/COEPViolationReportBody
• /en-US/docs/Web/API/COOPViolationReportBody/columnNumber
• /en-US/docs/Web/API/COOPViolationReportBody/disposition
• /en-US/docs/Web/API/COOPViolationReportBody/effectivePolicy
• /en-US/docs/Web/API/COOPViolationReportBody/lineNumber
• /en-US/docs/Web/API/COOPViolationReportBody/nextResponseURL
• /en-US/docs/Web/API/COOPViolationReportBody/previousResponseURL
• /en-US/docs/Web/API/COOPViolationReportBody/sourceFile
• /en-US/docs/Web/API/COOPViolationReportBody/type
• /en-US/docs/Web/API/COOPViolationReportBody

Flaws (30)

Note! 4 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/COEPViolationReportBody Title: COEPViolationReportBody Flaw count: 3

• macros:
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only

---

URL: /en-US/docs/Web/API/COEPViolationReportBody/disposition Title: COEPViolationReportBody: disposition property Flaw count: 1

• macros:
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only

---

URL: /en-US/docs/Web/API/COOPViolationReportBody Title: COOPViolationReportBody Flaw count: 15

• macros:
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Opener-Policy-Report-Only
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/referrer
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/property
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/openerURL
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/openedWindowURL
  • and 10 more flaws omitted

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/columnNumber Title: COOPViolationReportBody: columnNumber property Flaw count: 1

• broken_links:
  • /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-OPener-Policy is ill cased

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/disposition Title: COOPViolationReportBody: disposition property Flaw count: 1

• macros:
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/effectivePolicy Title: COOPViolationReportBody: effectivePolicy property Flaw count: 1

• macros:
  • Can't resolve /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Opener-Policy-Report-Only

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/lineNumber Title: COOPViolationReportBody: lineNumber property Flaw count: 1

• broken_links:
  • /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-OPener-Policy is ill cased

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/sourceFile Title: COOPViolationReportBody: sourceFile property Flaw count: 1

• broken_links:
  • /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-OPener-Policy is ill cased

---

URL: /en-US/docs/Web/API/COOPViolationReportBody/type Title: COOPViolationReportBody: type property Flaw count: 6

• macros:
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/referrer
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/referrer
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/property
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/openerURL
  • Can't resolve /en-US/docs/Web/API/COOPViolationReportBody/openedWindowURL
  • and 1 more flaws omitted

External URLs (2)

URL: /en-US/docs/Web/API/COEPViolationReportBody Title: COEPViolationReportBody

• https://developer.chrome.com/docs/capabilities/web-apis/reporting-api (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/API/COOPViolationReportBody Title: COOPViolationReportBody

• https://developer.chrome.com/docs/capabilities/web-apis/reporting-api (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-10-10 00:23:28)

[hamishwillee]

FYI, I have not forgotten this. It's just not as high on the priority list as I would like. Won't be this month.