Proficonf screen sharing

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Proficonf screen sharing",
  "description": "Simple extension that allows to stream desktop with proficonf.com",
  "version": "1.0.1",
  "minimum_chrome_version": "34",
  "icons": {
    "16": "logo-16x16.png",
    "48": "logo-48x48.png",
    "128": "logo-128x128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "desktopCapture"
  ],
  "externally_connectable": {
    "matches": [
      "*://proficonf.com/*",
      "*://*.proficonf.com/*",
      "*://*.proficonf.io/*",
      "http://localhost:8000/*"
    ]
  }
}