401 error

Hi,

I create an App search scaffold from enterprise-search on my server ( same network than my laptop) 
I follow instruction to run the react app : 

- npm build 
- serve -s build 

I success to show the application from my laptop ( firefox ) . From other computer or from google chrome, it ask for a "user" and "password" by telling "Your connexion is not private" ...  I cannot understand

