Access to XMLHttpRequest at 'http://localhost:8080/socket.io/?EIO=4&transport=polling&t=NeMYaI8' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Refused to apply style from 'http://localhost:3000/css/styles.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.