Filip Fellman

TypeError [ERR_HTTP_INVALID_HEADER_VALUE]: Invalid value "undefined" for header "X-AuthenticationSession"

1

I get following error with this code, not sure what I'm doing wrong.. ``` const Avanza = require('avanza') const avanza = new Avanza() console.log(avanza) var user = 'fellmanfilip' avanza.authenticate({ username:...