networking – How do you share a website running on my computer (localhost-127.0.0.1) with other people connected to the same wifi network?

I run a dashboard locally on my computer on port 8080. I wish to be able to share this dashboard with other people at work. I have tried to use these services:
http://localtunnel.me/
https://ngrok.com/
http://localhost.run/
https://serveo.net/
But none of them worked for me. They all do the same thing, I will execute the command, it will work for a little while, then nothing will happen. No URLs are displayed. Could this be because I'm doing it at work and a network firewall is preventing this from happening? If this is the case, does anyone know that there is a way around the problem?

Any help would be appreciated!