Examine source code of LocalStorage Cache

{
  "default_locale": "en",
  "name": "LSC - JavaScript localStorage Cache",
  "description": "LSC - JavaScript localStorage Cache",
  "version": "1.0.0",
  "manifest_version": 2,
  "icons": {
    "16": "/img/icon-16x16.png",
    "32": "/img/icon-32x32.png",
    "48": "/img/icon-48x48.png",
    "128": "/img/icon-128x128.png"
  },
  "background": {
    "page": "/js/service.js"
  },
  "page_action": {
    "default_popup": "/html/popup.html",
    "default_icon": {
      "16": "/img/icon-16x16.png",
      "32": "/img/icon-32x32.png",
      "48": "/img/icon-48x48.png",
      "128": "/img/icon-128x128.png"
    }
  },
  "options_ui": {
    "page": "/html/options.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "*://*/",
    "https://*/**",
    "http://*/**"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "/js/lsc.js",
        "/js/shared.js",
        "/js/lscplugin.js"
      ],
      "run_at": "document_start"
    }
  ]
}