Need help with PubSub Example

Hi! Im trying to develop a panel extension. I am using Node with Developer Rig.

I have imorted the PubSUb template and the frontend at least works in dev rig.

I’ve setted the same Uri in dev extension console than the one that the backend shows.

I’ve run “node bin/generate_cert.js server”, so i have the conf folder with certificates inside,

but i have 404 GET problem.
can anyone help me?

https://gyazo.com/b618ff8c641789282df44c10cd7b8411

https://gyazo.com/732c9a04137afb33d5bb7ecf17029268

thank you!