Work Offline

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "version": "0.2.1",
  "name": "Work Offline",
  "description": "Brings work offline and online in the web page level to your browser",
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "homepage_url": "https://add0n.com/work-offline.html",
  "permissions": [
    "storage",
    "contextMenus",
    "declarativeNetRequest",
    "scripting"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "background": {
    "service_worker": "worker.js"
  },
  "action": {
    "default_icon": {
      "16": "data/icons/disabled/16.png",
      "32": "data/icons/disabled/32.png",
      "48": "data/icons/disabled/48.png"
    }
  },
  "commands": {
    "_execute_action": {
      "description": "Press the action button"
    },
    "toggle.offline": {
      "description": "Toggle Offline Mode for This Tab"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "/data/offline/index.html"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ]
}