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conformance · v144

v144 · web-app-manifest-specify-update-eligibility-icon-urls-are-cache-control-immutabl — conformance probe

4 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://www.w3.org/TR/appmanifest/#updating chromestatus: #5148463647686656 generated 2026-06-01T08:03:56Z by conformance-author-v1-subagent
0
pass
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fail
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blocked
4
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id contract kind verdict detail
manifest-link-rel-still-supported <link rel="manifest"> remains the entry point; HTMLLinkElement reflects rel. spec ↗ script
manifest-content-type The manifest type is application/manifest+json; <link> accepts the type attribute reflecting it. spec ↗ script
no-update-eligibility-script-api The update eligibility behaviour is server-driven via Cache-Control: immutable on icon URLs — there is no JavaScript API change. Test: there is no document.installedAppUpdateEligibility hook. spec ↗ script
manifest-link-href-readable HTMLLinkElement href is reflected and resolvable. spec ↗ script