AccountKit Add-on for Gmail

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "author": "Keerthi Vardhan S",
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*",
        "https://inbox.google.com/"
      ],
      "js": [
        "inboxsdk.js",
        "AkButton.js",
        "frame.js",
        "myApp.js"
      ]
    }
  ],
  "externally_connectable": {
    "matches": [
      "https://*.google.com/*",
      "https://my.account-kit.com/",
      "https://public.dm.files.1drv.com/"
    ]
  },
  "content_security_policy": "frame-src https://dev.account-kit.com/ https://my.account-kit.com/ 'self';script-src 'self' https://dev.account-kit.com/* https://my.account-kit.com/* https://www.googleapis.com https://cdnjs.cloudflare.com; object-src 'self' https://dev.account-kit.com/* https://my.account-kit.com/*; frame-ancestors 'self' https://mail.google.com/",
  "description": "Send and receive emails from Gmail into AccountKit to centralise client correspondence across your practice in the one place.",
  "icons": {
    "16": "images/AKICONGREENCYAN_50.png",
    "128": "images/AKICONGREENCYAN_50.png"
  },
  "manifest_version": 2,
  "name": "AccountKit Add-on for Gmail",
  "permissions": [
    "https://mail.google.com/",
    "https://inbox.google.com/"
  ],
  "version": "2.0.0.3",
  "web_accessible_resources": [
    "frame.html",
    "images/AKICONGREENCYAN_50.png",
    "html/*",
    "css/*",
    "images/*",
    "AccountKit/*",
    "RichWidgets/*",
    "resources/*",
    "Emails/*",
    "Emails/Office365.aspx?type=gmail"
  ]
}