cover functionality of "PWA validator" bookmarklet about lighthouse

[paullewis]

@PaulKinlan FYI.

[paulirish]

great work on this btw @PaulKinlan :)

the tests within it:

  var tests = [
    [hasManifest, "Has a manifest"],
    [isOnHTTPS, "Site is on HTTPS"],
    [hasCanonicalUrl, "Site has a canonical URL"],
    [hasManifestThemeColor, "Site manifest has theme_color"],
    [hasManifestBackgroundColor, "Site manifest has background_color"],
    [hasManifestStartUrl, "Site manifest has start_url"],
    [hasManifestShortName, "Site manifest has short_name"],
    [hasManifestName, "Site manifest has name"],
    [hasManifestIcons, "Site manifest has icons defined"],
    [hasManifestIcons192, "Site manifest has 192px icon"],
    [isControlledByServiceWorker, "Site is currently controlled by a service worker"],
    [hasServiceWorkerRegistration, "Site is has a service worker registration"]
  ];

[samccone]

another xref to a related googler project https://github.com/mounirlamouri/manifest-validator

[paulirish]

@samccone yup! i was gonna tell you this was extracted from that: https://github.com/mounirlamouri/manifest-validator/blob/master/static/manifest-parser.js ... but i suppose you already know that 👅