text: Title: Getting CORS Error
  Body: When I run the code there is a cors error shown as below: 
  
  Access to fetch at 'http://127.0.0.1:8080/api/cancel' from origin 'http://0.0.0.0:3000' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`.
  
  