Can you completely disable CORS support in Spring?

Question

As described in CORS preflight request fails due to a standard header if you send requests to OPTIONS endpoints with the Origin and Access-Control-Request-Method headers set then they get intercepted by the Spring framework, and your method does not get executed. The accepted solution is the use @CrossOrigin annotations to stop Spring returning a 403. However, I am generating my API code with Swagger Codegen and so I just want to disable this and implement my OPTIONS responses manually.

So can you disable the CORS interception in Spring?

Answer 1

From their documentation:

If you are using Spring Web MVC

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedMethods("HEAD", "GET", "PUT", "POST", "DELETE", "PATCH");
    }
}

If you are using Spring Boot:

@Configuration
public class MyConfiguration {

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurerAdapter() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedMethods("HEAD", "GET", "PUT", "POST", "DELETE", "PATCH");
            }
        };
    }
}

Yuriy Yunikov answer is correct as well. But I don't like the "custom" filter.

In case you have Spring Web Security which causes you trouble. Check this SO Answer.

Answer 2

Try to add a following filter (you can customize it for you own needs and methods supported):

@Component
public class CorsFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(final HttpServletRequest request, final HttpServletResponse response,
                                    final FilterChain filterChain) throws ServletException, IOException {
        response.addHeader("Access-Control-Allow-Origin", "*");
        response.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, PATCH, HEAD");
        response.addHeader("Access-Control-Allow-Headers", "Origin, Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");
        response.addHeader("Access-Control-Expose-Headers", "Access-Control-Allow-Origin, Access-Control-Allow-Credentials");
        response.addHeader("Access-Control-Allow-Credentials", "true");
        response.addIntHeader("Access-Control-Max-Age", 10);
        filterChain.doFilter(request, response);
    }
}