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COOP violation report#42639

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hamishwillee:coop_violation_report
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COOP violation report#42639
hamishwillee wants to merge 1 commit intomdn:mainfrom
hamishwillee:coop_violation_report

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@hamishwillee hamishwillee commented Jan 6, 2026 •
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COOP uses the reporting API to report violations. This adds docs.

Note, https://github.com/mdn/content/pull/39880/files#r2425080573 :

COEP reports are visible to reporting observers.
COOP property access reports are also visible to reporting observers. The navigation ones are not.

Also data mine or integrate with #42051 and see if there is anything additional to capture from #39880 (comment)

Fixes #39814

@hamishwillee hamishwillee requested review from a team as code owners January 6, 2026 03:53
@hamishwillee hamishwillee requested review from pepelsbey and wbamberg and removed request for a team January 6, 2026 03:53
@github-actions github-actions bot added the Content:WebAPI Web API docs label Jan 6, 2026
@hamishwillee hamishwillee marked this pull request as draft January 6, 2026 03:53
@github-actions github-actions bot added the size/l [PR only] 501-1000 LoC changed label Jan 6, 2026
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github-actions bot commented Jan 6, 2026

Preview URLs (9 pages)
Flaws (26)

Note! 2 documents with no flaws that don't need to be listed. 🎉

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

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

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

  • broken_links:
    • Link /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:
    • Macro httpheader produces link /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only which doesn't resolve

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

  • macros:
    • Macro httpheader produces link /en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Opener-Policy-Report-Only which doesn't resolve

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

  • broken_links:
    • Link /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:
    • Link /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:
    • Macro domxref produces link /en-US/docs/Web/API/COOPViolationReportBody/referrer which doesn't resolve
    • Macro domxref produces link /en-US/docs/Web/API/COOPViolationReportBody/referrer which doesn't resolve
    • Macro domxref produces link /en-US/docs/Web/API/COOPViolationReportBody/property which doesn't resolve
    • Macro domxref produces link /en-US/docs/Web/API/COOPViolationReportBody/openerURL which doesn't resolve
    • Macro domxref produces link /en-US/docs/Web/API/COOPViolationReportBody/openedWindowURL which doesn't resolve
    • and 1 more flaws omitted
External URLs (1)

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

@github-actions github-actions bot added the merge conflicts 🚧 [PR only] label Mar 6, 2026
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github-actions bot commented Mar 6, 2026

This pull request has merge conflicts that must be resolved before it can be merged.

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@wbamberg wbamberg Awaiting requested review from wbamberg wbamberg was automatically assigned from mdn/web-api

@pepelsbey pepelsbey Awaiting requested review from pepelsbey pepelsbey is a code owner automatically assigned from mdn/content-team

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Successfully merging this pull request may close these issues.

COOP and COEP have no documentation of the report-to parameter

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