Nightscout Chrome Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Nightscout Chrome Extension",
  "version": "2.1.1",
  "description": "A Chrome extension that adds a convenient way to check blood sugar data from Nightscout in your browser.",
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "permissions": [
    "storage",
    "https://*.herokuapp.com/",
    "notifications"
  ],
  "optional_permissions": [
    "https://*/"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/nightscout16.png",
      "32": "images/nightscout32.png",
      "48": "images/nightscout48.png",
      "128": "images/nightscout128.png"
    }
  },
  "icons": {
    "16": "images/nightscout16.png",
    "32": "images/nightscout32.png",
    "48": "images/nightscout48.png",
    "128": "images/nightscout128.png"
  },
  "manifest_version": 2
}