demo · v144

Eligibility Simulator

Paste your old and new manifests. The simulator runs the v144 eligibility algorithm — immutable icon URLs short-circuit, other fields trigger an update prompt — and tells you which check Chrome will run, including the new opt-in fields.

algorithm: v144 (with immutable icon URLs)

installed manifest

new manifest from network

field-by-field

verdict

—

the API

{
  "name": "Notes",
  "icons": [{ "src": "/icon.png?v=a1", "sizes": "512x512" }],
  "update_eligibility": "auto",       /* "auto" | "manual" */
  /* Chrome 144 will treat icon URLs that differ by query string as immutable
     and skip refetch. Cache-Control: immutable on the icon response amplifies. */
}

see also