Registration doesn't work

[yoonwaiyan]

Hi, I'm trying to deploy serverless and try the chat application from my local but it doesn't work. I try to register for an account but it shows Network Error. Upon checking I saw this error appears in my console:

Client.js:47 OPTIONS https://cognito-idp.user.amazonaws.com/ net::ERR_NAME_NOT_RESOLVED

I try to trace the codebase to find anything that I'm missing out but apparently this isn't specified anywhere so I would guess this is provided by AWS-Amplify. Would like to is there any idea why this URL is not working?

Thanks for the great example for serverless!