Netcat

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "minimum_chrome_version": "56",
    "name": "Netcat",
    "icons": {
        "128": "images\/icon-128x128.png"
    },
    "app": {
        "persistent": false,
        "background": {
            "scripts": [
                "background.js"
            ]
        }
    },
    "offline_enabled": true,
    "version": "6.0.1",
    "manifest_version": 2,
    "permissions": [
        "storage",
        {
            "socket": [
                "tcp-connect",
                "tcp-listen",
                "udp-bind",
                "udp-send-to"
            ]
        }
    ],
    "sockets": {
        "udp": {
            "bind": [
                "*:*"
            ],
            "send": [
                "*:*"
            ]
        },
        "tcpServer": {
            "listen": [
                "*:*"
            ]
        },
        "tcp": {
            "connect": [
                "*:*"
            ]
        }
    },
    "description": "Netcat in the browser"
}