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conformance · v131
v131 · noopener-allow-popups-coop-value — conformance probe
5 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
window-open-exposed |
window.open remains the popup surface controlled by Cross-Origin-Opener-Policy. spec ↗ | typeof | … | |
headers-accept-coop-value |
The Cross-Origin-Opener-Policy header can carry noopener-allow-popups. spec ↗ | script | … | |
report-only-header-accepts-value |
The report-only COOP header can also carry noopener-allow-popups. spec ↗ | script | … | |
anchor-noopener-rel-supported |
HTMLAnchorElement relList supports noopener, the opener isolation primitive this COOP value applies automatically. spec ↗ | script | … | |
coop-request-header-roundtrip |
A Request can carry a COOP value in its Headers object for server-side route tests. spec ↗ | script | … |