Gmail automatic BCC me by 010Pixel

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Gmail automatic BCC me by 010Pixel",
  "short_name": "Gmail-Automatic-BCC-Me",
  "description": "A plugin for gmail to automatically BCC sender's email.",
  "version": "1.1.3",
  "author": "010 Pixel",
  "permissions": [
    "https://mail.google.com/",
    "https://inbox.google.com/"
  ],
  "browser_action": {
    "default_icon": "images/icon16.png"
  },
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "96": "images/icon96.png",
    "128": "images/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*",
        "https://inbox.google.com/*"
      ],
      "js": [
        "inboxsdk.js",
        "myapp.js"
      ]
    }
  ]
}