Error: regeneratorRuntime is not defined

Code

import ImapClient from 'emailjs-imap-client'

const options = {
  auth: {
    user: '<removed>',
    pass: '<removed>'
  }
}

const client = new ImapClient('imap.gmail.com', 993, options)

client.onerror = error => {
  console.log('Email client error:', error)
}

console.log('Connecting...')
client.connect().then(() => {
  console.log('Client connected!')
  console.log('Closing connection...')
  client.close().then(() => console.log('Connection closed'))
})

Expected result

Fairly straight forward. a few logs: client open, client closed. Just to test my connection to gmail.

Actual result

An error is thrown from the constructor, not from the client.onerror handler.

$ node .
E:\Documents\GitHub\Repositories\temp\node_modules\emailjs-imap-client\dist\imap.js:500
    value: /*#__PURE__*/regeneratorRuntime.mark(function _iterateIncomingBuffer() {
                        ^

ReferenceError: regeneratorRuntime is not defined
    at E:\Documents\GitHub\Repositories\temp\node_modules\emailjs-imap-client\dist\imap.js:500:25
    at Object.<anonymous> (E:\Documents\GitHub\Repositories\temp\node_modules\emailjs-imap-client\dist\imap.js:1065:2)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)
    at Module.require (module.js:587:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (E:\Documents\GitHub\Repositories\temp\node_modules\emailjs-imap-client\dist\client.js:24:13)

Indeed, in the file that the error points to:

https://github.com/emailjs/emailjs-imap-client/blob/5616706172514c9337854020af57f23aba479037/dist/imap.js#L500

The variable regeneratorRuntime isn’t defined anywhere that I can see, at least in that file.

I tried:

1. Running in node (where import was swapped with require)
2. Running in a browser (after building with parceljs).

So, what am I doing wrong here? I don’t see any other issues that mention this error so I must be doing something really silly…

[felixhammerl]

hi y’all, let me dive into the babel configuration later this weekend. didn’t have time to respond this week, sorry.

[felixhammerl]

The self-signed warning is b/c you didn’t bother to get a proper TLS cert 😃 Interesting though that the warning doesn’t go through the error handler. Need to look into that. Check the tcp-socket repo to generate a proper self-signed cert. For testing purposes, add that cert to your certificate store. Never skip TLS verification in your production code. If you actually run that somewhere, please set up Let’s Encrypt.