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conformance · v135

v135 · no-vary-search-support-for-the-http-disk-cache — 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.

browser: spec: https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html chromestatus: #5808599110254592 generated 2026-06-01T09:41:00Z by conformance-author-v1-subagent
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pass
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fail
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blocked
5
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id contract kind verdict detail
fetch-exists fetch() is exposed — the only JS-observable surface; No-Vary-Search is purely a response-header contract. spec ↗ typeof
headers-no-vary-search-allowed Headers permits No-Vary-Search header name (so response headers can be inspected from JS). spec ↗ script
headers-key-order-list-valid Headers accepts the key-order list syntax used by No-Vary-Search ('key-order, params=("x")'). spec ↗ script
speculation-rules-no-vary-search-supported Speculation Rules (where No-Vary-Search was first wired up) is supported via document.scripting-side: HTMLScriptElement supports type=speculationrules. spec ↗ script
request-cache-modes-supported Request supports cache modes — the HTTP-cache surface that No-Vary-Search interacts with. spec ↗ script