Smart Page Ruler

manifest.json

{
  "name": "Smart Page Ruler",
  "short_name": "Page Ruler",
  "offline_enabled": true,
  "version": "1.0.0",
  "manifest_version": 2,
  "icons": {
    "16": "images/icons/icon-16.png",
    "24": "images/icons/icon-24.png",
    "32": "images/icons/icon-32.png",
    "64": "images/icons/icon-64.png",
    "128": "images/icons/icon-128.png",
    "256": "images/icons/icon-256.png",
    "512": "images/icons/icon-512.png"
  },
  "background": {
    "scripts": [
      "js/backround.js"
    ]
  },
  "permissions": [
    "*://*/*",
    "contextMenus"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "/js/main.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_action": {
    "default_icon": "images/icons/icon-64.png"
  },
  "web_accessible_resources": [
    "/js/main.js",
    "/css/main.css"
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}