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conformance · v154

v154 · private-verification-tokens — conformance probe

6 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.

browser: spec: https://wicg.github.io/trust-token-api/ chromestatus: #6210457816924160 generated 2026-08-28T00:00:00Z by claude-opus-5-v154-build
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id contract kind verdict detail
the-query-methods-exist Both document methods of the shipping token mechanism this proposal builds on. They are the only part of the area callable without an issuer, a token or a gesture. spec ↗ script
a-valid-issuer-answers-rather-than-throwing A well-formed https origin must produce a boolean, not an error — a browser holding no tokens says false. Anything else would make the check unusable as a pre-flight. spec ↗ script
an-untrustworthy-issuer-is-refused An issuer must be a potentially trustworthy origin. A plain http origin is rejected before any lookup happens, which is what stops an issuer being impersonated on a network you do not control. spec ↗ script
the-request-carries-token-operations Operations ride on the request options bag rather than on a header, so a page cannot forge or copy one. Probed with a getter, which fires only if the member is read. spec ↗ script
the-operation-vocabulary-is-enforced An unknown operation is rejected at the options-bag conversion, with a message naming the offending value. A silently ignored operation would leave a page believing it had sent something it had not. spec ↗ script
a-known-operation-is-accepted The control for the assertion above: at least one operation must be accepted, or the rejection proves nothing about the vocabulary. spec ↗ script