UPC Extractor

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "UPC Extractor",
  "version": "1.3",
  "description": "Extracts the UPC code from a product page. Supports Walmart, Target, Best Buy, Lowes, Amazon, and Home Depot.",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "scripting"
  ],
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.walmart.com/*",
        "https://www.walmart.ca/*",
        "https://www.walmart.co.uk/*",
        "https://www.target.com/*",
        "https://www.target.ca/*",
        "https://www.target.co.uk/*",
        "https://www.bestbuy.com/*",
        "https://www.bestbuy.ca/*",
        "https://www.bestbuy.co.uk/*",
        "https://www.lowes.com/*",
        "https://www.lowes.ca/*",
        "https://www.lowes.co.uk/*",
        "https://www.homedepot.com/*",
        "https://www.homedepot.ca/*",
        "https://www.homedepot.co.uk/*",
        "https://www.amazon.com/*",
        "https://www.amazon.ca/*",
        "https://www.amazon.co.uk/*",
        "https://www.newegg.com/*",
        "https://www.newegg.ca/*",
        "https://www.newegg.co.uk/*"
      ],
      "js": [
        "content.js",
        "scripts/JsBarcode.code128.min.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/barcode.png",
      "48": "images/barcode.png",
      "128": "images/barcode.png"
    }
  },
  "icons": {
    "16": "images/barcode.png",
    "48": "images/barcode.png",
    "128": "images/barcode.png"
  }
}