Proxy Example returns: Error: Request blocked by CLoudFlare

[ ] The FAQ doesn't contain a resolution to my issue

Versions

• minecraft-protocol: 1.22.0
• server: bungeecord 1.8 - 1.16.4 (hypixel.net)
• node: 12.18.3
• proxy-agent: 4.0.0

Detailed description of a problem

When running the client_http_proxy example I receive the error that my request has been blocked by CloudFlare. It counts this as an UnhandledPromiseRejection and is traced to node_modules/yggdrasil/lib/utils.js and node_modules/phin/lib/phin.js

Current code

if (process.argv.length < 6 || process.argv.length > 8) {
    console.log('Usage : node client_http_proxy.js <host> <port> <proxyHost> <proxyPort> [<name>] [<password>]')
    process.exit(1)
}

const proxyHost = process.argv[4]
const proxyPort = process.argv[5]

const client = mc.createClient({
    connect: (client) => {
        const req = Http.request({
            host: proxyHost,
            port: proxyPort,
            method: 'CONNECT',
            path: process.argv[2] + ':' + parseInt(process.argv[3])
        })
        req.end()

        req.on('connect', (res, stream) => {
            client.setSocket(stream)
            client.emit('connect')
        })
    },
    agent: new ProxyAgent({ protocol: 'http', host: proxyHost, port: proxyPort }),
    username: process.argv[6] ? process.argv[6] : 'echo',
    password: process.argv[7]
})
client.on('connect', function () {
    console.info('connected')
})

Expected behavior

The client should authenticate with mojang's authentication api, and then log into the server.

Additional context

The proxy used is an http datacentre from proxyscrape.com. Running the proxy through a proxy checker, it is still alive.

Start by reproducing the current client_http_proxy example with the listed proxy and trace whether the CloudFlare response occurs during the proxy CONNECT or Mojang authentication. Inspect the reported yggdrasil/lib/utils.js and phin/lib/phin.js paths; done means identifying a repository-side fix or documenting that the response is external to this project.