sls login in cloud9

Hi. I am investigating if I can move my workflow to Cloud9. A problem that has come up is that I can't login with serverless (sls login). The program indicates that it opens a new browser in order for me to login but I don't get an URL and opening a browser in Cloud 9 does not work.

~/environment/slim7-api-s3v7.1 (jm-development) $ sls login
Serverless: Logging you in via your default browser…

How do I solve this?
Regrds
Johan