Examine source code of Block HTTP

{
  "manifest_version": 2,
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "default_locale": "en_US",
  "name": "__MSG_browser_extension_name__",
  "description": "__MSG_browser_extension_description__",
  "version": "1.0",
  "permissions": ["webRequest", "webRequestBlocking", "*://*/"],
  "background": {
    "scripts":  ["javascript/background.js"]
  },
  "icons": {
    "48": "images/icon.png",
    "96": "images/iconx2.png"
  }
//  "homepage_url": "https://example.com/",
//  "options_ui": { "page": "views/options.html" }
}