← back to v143 · web-app-manifest-specify-update-eligibility-icon-urls-are-cache-control-immutabl
conformance · v143
v143 · web-app-manifest-specify-update-eligibility-icon-urls-are-cache-control-immutabl — 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.
0
pass
0
fail
0
blocked
6
total
| id | contract | kind | verdict | detail |
|---|---|---|---|---|
manifest-link-element |
<link rel=manifest> is recognised — the surface that ships manifest updates. spec ↗ | script | … | |
beforeinstallprompt-exposed |
BeforeInstallPromptEvent is exposed so the install flow that consumes the manifest can be probed. spec ↗ | exists | … | |
navigator-getinstalledrelatedapps |
navigator.getInstalledRelatedApps exists — tied to manifest update eligibility checks. spec ↗ | typeof | … | |
fetch-can-issue-cache-immutable |
Request can be created with cache:'force-cache' — mirrors the Cache-Control: immutable semantics applied to icon URLs. spec ↗ | script | … | |
document-secureorigin-for-install |
window.isSecureContext exists — manifest install is a secure-context feature. spec ↗ | script | … | |
link-rel-icon-still-supported |
<link rel=icon> still parses — icons resolved via the manifest fall back to this surface. spec ↗ | script | … |