Did you set API.HTTPHeaders with the correct values on your IPFS repo?

yup..here it looks like

"HTTPHeaders": {
  "Access-Control-Allow-Credentials": ["true"],
  "Access-Control-Allow-Headers": [
    "X-Requested-With",
    "Range"
  ],
  "Access-Control-Allow-Methods": [
    "GET","PUT","POST"
  ],
  "Access-Control-Allow-Origin": ["*"]      
},

Are you running the API on the same host and port as you're accessing the WebUI?

yup, where in webui project I see if its connection to right host/port? assume it tries with default localhost 5001?

well, i guess its solved by simply clicking http://localhost:5001/webui and it works. why we need to deploy webui separately on port 3000 then?

The port 3000 is only for development purposes or to run the latest version from this repository. If you just want to access the latest published version, you just need to follow the link you mentioned. 😄

Can we close this?