Web Mvc Configurer Articles | Spring Boot 123

How to Configure CORS in Spring Boot - Choosing Between @CrossOrigin and WebMvcConfigurer

A practical guide to resolving CORS errors when calling a Spring Boot REST API from frontends like React or Vue. Covers when to use each of the three approaches (@CrossOrigin, WebMvcConfigurer, and SecurityFilterChain), plus the pitfalls to watch for when introducing Spring Security.

2026-03-28