WhatsApp chat backup tool by SuperLemon

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "WhatsApp chat backup tool by SuperLemon",
  "description": "Backup your WhatsApp chats",
  "version": "1.0.1",
  "action": {
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "css": [
        "style/progressbar.css"
      ],
      "js": [
        "script/content-script.js",
        "script/FileSaver.js",
        "script/injectedWA.js",
        "script/jszip.js"
      ],
      "matches": [
        "https://web.whatsapp.com/*"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "externally_connectable": {
    "matches": [
      "*://*.whatsapp.com/*",
      "*://*.whatsapp.net/*"
    ]
  },
  "icons": {
    "128": "images/logo.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://web.whatsapp.com/"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "script/progressBar.js",
        "script/injectedWA.js",
        "script/FileSaver.js",
        "style/progressbar.css",
        "images/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}