Examine source code of CR-beta-unblocker

{
  "description": "beta.crunchyroll.com unblocker",
  "manifest_version": 2,
  "name": "CR-beta",
  "version": "1.0.1b1",
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "cookies",
    "*://*.crunchyroll.com/",
    "*://*.herokuapp.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.crunchyroll.com/"
      ],
      "js": [
        "hello.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js",
      "cors.js"
    ]
  }
}