리액트 CORS 에러리액트 Axios CORS 에러개발 환경Spring Boot## CORSspring.mvc.cors.allowed-origins=http://localhost:3000spring.mvc.cors.allowed-methods=GET,POST,PUT,DELETEspring.mvc.cors.allowed-headers=*React프록시 설정"proxy": "http://localhost:8080",운영 환경Reactconst { createProxyMiddleware } = require('http-proxy-middleware');module.exports = function(app) { app.use( '/api', createProxyMiddleware({ tar..
