hi bro ,i use this lib throw a error

[gtsigner]

with superagent 5.x version

TypeError: Cannot read property 'apply' of undefined
    at callSocketMethod (_http_client.js:737:27)
    at ClientRequest.onSocket (_http_client.js:745:7)
    at Object.onceWrapper (events.js:300:26)
    at ClientRequest.emit (events.js:215:7)
    at tickOnSocket (_http_client.js:684:7)
    at onSocketNT (_http_client.js:723:5)

[gtsigner]

look like the node lib errors,

[gtsigner]

and i need send headers or proxy-auth

[insightfuls]

I would need to know the exact version of NodeJS you are using to attempt to ascertain if the bug is related to this module, and if so, what it is.

[insightfuls]

Closing this stale issue.