Spring CORS 404

@CrossOrigin(origins = "http://example.com", methods = RequestMethod.GET)
@RestController
public class MyController {
    // Controller methods
}

@Configuration
public class CorsConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("http://example.com")
                .allowedMethods("GET", "POST")
                .allowedHeaders("header1", "header2")
                .allowCredentials(true)
                .maxAge(3600);
    }
}

@Component
public class CorsFilter implements Filter {
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse httpResponse = (HttpServletResponse) response;
        httpResponse.setHeader("Access-Control-Allow-Origin", "http://example.com");
        httpResponse.setHeader("Access-Control-Allow-Methods", "GET, POST");
        httpResponse.setHeader("Access-Control-Allow-Headers", "header1, header2");
        httpResponse.setHeader("Access-Control-Allow-Credentials", "true");
        httpResponse.setHeader("Access-Control-Max-Age", "3600");
        chain.doFilter(request, response);
    }
}