Example apps in the "Learn" section of dgraph.io

I’m new to dgraph and wanted to get through some examples. So I went to Learn – Dgraph | GraphQL Cloud Platform and got to the section with the three examples. None of them work:

  • Sharding: Posting Todos fails because of CORS violation.
  • Message Board: GraphQL error about non-nullable.
  • Surveyo: Cant create a survey, fails because of TypeError: Cannot read properties of null (reading ‘form’) error.

Just to give you a heads up.