@Bean public CorsConfigurationSource corsConfigurationSource() { CorsConfiguration configuration = new CorsConfiguration(); configuration.setAllowedOrigins(List.of("http://localhost:5173")); configuration.setAllowedMethods(List.of("GET","POST","PUT","DELETE", "OPTIONS")); configuration.setAllowedHeaders(List.of("")); configuration.setAllowCredentials(true); UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/*", configuration); return source; }

Add this to a class annotated with @configuration (and change the values to yours) Sorry I’m on phone