Examine source code of DontBugMe for BugMeNot credentials

{
  "description": "DontBugMe allows you to easily use credentials from BugMeNot.com on any page.",
  "version": "2.0.3",
  "name": "DontBugMe",
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "34": "icon-34.png"
    },
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "http://bugmenot.com/view/*"
  ],
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>"
      ],
      "js": [
        "contentScript.bundle.js"
      ],
      "css": [
        "content.styles.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "content.styles.css",
    "icon-128.png",
    "icon-34.png"
  ],
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' 'unsafe-eval' https://scripts.simpleanalyticscdn.com https://a.vantezzen.io; object-src 'self'"
}