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conformance · v141

v141 · no-vary-search-support-for-the-http-disk-cache — 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://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html chromestatus: #5808599110254592 generated 2026-06-01T08:13:08Z by conformance-author-v1-subagent
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id contract kind verdict detail
fetch-exists fetch is the API through which No-Vary-Search-controlled cache hits are observed in the page. typeof
request-cache-default Request supports the cache init member ('default' etc.); No-Vary-Search interacts with the HTTP disk cache layer that this surface controls. script
cachestorage-exists caches (CacheStorage) is exposed; No-Vary-Search is also acceptable in service-worker Cache lookups in some implementations. exists
performance-resource-timing PerformanceResourceTiming entries expose transferSize/encodedBodySize, the surfaces by which cache hits surface in the page. script
headers-getsetcookie Headers.prototype.get is callable; the No-Vary-Search response header is read via the standard fetch Headers API. script
url-search-params-iterable URLSearchParams is iterable; No-Vary-Search semantics are defined over the URL's query parameter set. script