Squaredance Pixel Helper

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Squaredance Pixel Helper",
  "version": "4.1.0",
  "description": "Squaredance Pixel Helper - A Chrome Extension",
  "manifest_version": 2,
  "icons": {
    "16": "icons/16.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "tabs",
    "background",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "*://localhost/*",
    "<all_urls>"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+J",
        "mac": "Command+J"
      }
    }
  },
  "browser_action": {
    "default_title": "Squaredance Pixel Helper",
    "default_popup": "pages/popup.html"
  },
  "background": {
    "persistent": true,
    "page": "pages/background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "match_about_blank": true,
      "all_frames": true,
      "js": [
        "js/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}