CORS blocked access orign request on local Environment

[a08maheshwari]

I followed the instruction step by step from the source code:
but I got stuck with the Error
Access to XMLHttpRequest at 'https://cosmos-XXXX-dev.documents.azure.com/:5001/client/negotiate?hub=XXXXXX' from origin 'http://localhost:7071' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

I already tried some of the solutions

1. LocalSetting.json
   "Host": {
   "LocalHttpPort": 7071,
   "CORS": "*",
   "CORSCredentials": false
   }

2. {
   "Values": {
   },
   "Host": {
   "CORS": "*"
   }
   }
   @ealsur @wely Can you please suggest what I am missing?
   thanks in advance