Examine source code of Mealio

{
  "manifest_version": 3,
  "name": "Mealio",
  "version": "1.1.1",
  "description": "Save meal recipes and auto-fill your cart at 30+ major grocery retailers. Browse meals from your favorite creators.",
  "homepage_url": "https://mealio.co",
  "browser_specific_settings": {
    "gecko": {
      "id": "mealio@mealio.co",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ],
        "optional": []
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "https://www.heb.com/*",
    "https://www.walmart.com/*",
    "https://www.kroger.com/*",
    "https://www.albertsons.com/*",
    "https://www.safeway.com/*",
    "https://www.vons.com/*",
    "https://www.jewelosco.com/*",
    "https://www.shaws.com/*",
    "https://www.acmemarkets.com/*",
    "https://www.tomthumb.com/*",
    "https://www.randalls.com/*",
    "https://www.pavilions.com/*",
    "https://www.starmarket.com/*",
    "https://www.haggen.com/*",
    "https://www.carrsqc.com/*",
    "https://www.kingsfoodmarkets.com/*",
    "https://www.balduccis.com/*",
    "https://www.ralphs.com/*",
    "https://www.fredmeyer.com/*",
    "https://www.kingsoopers.com/*",
    "https://www.smithsfoodanddrug.com/*",
    "https://www.frysfood.com/*",
    "https://www.qfc.com/*",
    "https://www.citymarket.com/*",
    "https://www.dillons.com/*",
    "https://www.bakersplus.com/*",
    "https://www.marianos.com/*",
    "https://www.picknsave.com/*",
    "https://www.metromarket.net/*",
    "https://www.pay-less.com/*",
    "https://www.harristeeter.com/*",
    "https://www.wegmans.com/*",
    "https://www.aldi.us/*",
    "https://www.centralmarket.com/*",
    "https://www.costco.com/*",
    "https://www.amazon.com/fmc/storefront/fresh/*",
    "https://mealio.co/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src https://fonts.gstatic.com; object-src 'none'"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "Open Mealio",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://mealio.co/*"
      ],
      "js": [
        "content-mealio-web.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.heb.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-heb.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.walmart.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-walmart.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.kroger.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.albertsons.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.safeway.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.vons.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.jewelosco.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.shaws.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.acmemarkets.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.tomthumb.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.randalls.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.pavilions.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.starmarket.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.haggen.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.carrsqc.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.kingsfoodmarkets.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.balduccis.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-albertsons-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.ralphs.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.fredmeyer.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.kingsoopers.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.smithsfoodanddrug.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.frysfood.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.qfc.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.citymarket.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.dillons.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.bakersplus.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.marianos.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.picknsave.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.metromarket.net/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.pay-less.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.harristeeter.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-kroger-family.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.aldi.us/*"
      ],
      "js": [
        "content-shared.js",
        "content-aldi.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.centralmarket.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-centralmarket.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.costco.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-costco.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.amazon.com/fmc/storefront/fresh/*"
      ],
      "js": [
        "content-shared.js",
        "content-amazon-fresh.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.wegmans.com/*"
      ],
      "js": [
        "content-shared.js",
        "content-wegmans.js"
      ],
      "run_at": "document_idle"
    }
  ]
}