Java – Spring Security CORS filter not working

angularjscorsjavaspringspring-security

I'm using spring security with OAuth2 (version: 4.0.4.RELEASE) and spring (verison: 4.3.1.RELEASE).

I'm developing frontend in Angular and I'm using grunt connect:dev (http://127.0.0.1:9000). When I trying to login by localhost address everything working fine but from other I'm getting error:

"XMLHttpRequest cannot load http://localhost:8084/oauth/token?client_id=MY_CLIENT_ID. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:9000' is therefore not allowed access. The response had HTTP status code 401."

I have configured mapping (Overrided public void addCorsMappings(CorsRegistry registry)) in WebMvcConfigurerAdapter (like below) but it still not working for http://127.0.0.1:9000. 

    registry.addMapping("/**")
            .allowedOrigins("http://127.0.0.1:9000")
            .allowedMethods("POST", "OPTIONS", "GET", "DELETE", "PUT")
            .allowedHeaders("X-Requested-With,Origin,Content-Type,Accept,Authorization")
            .allowCredentials(true).maxAge(3600);

Configuration based on: https://spring.io/guides/gs/rest-service-cors/

Please, point me the right directon to resolve this issue.

Best Answer

Hopefully, you found an answer long ago, but if not (and if anyone else finds this question searching as I was):

The issue is that Spring Security operates using filters and those filters generally have precedence over user defined filters, @CrossOrigin and similar annotations, etc.

What worked for me was to define the CORS filter as a bean with highest precedence, as suggested here.

@Configuration
public class MyConfiguration {

    @Bean
    public FilterRegistrationBean corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOrigin("http://127.0.0.1:9000");
        config.setAllowedMethods(Arrays.asList("POST", "OPTIONS", "GET", "DELETE", "PUT"));
        config.setAllowedHeaders(Arrays.asList("X-Requested-With", "Origin", "Content-Type", "Accept", "Authorization"));
        source.registerCorsConfiguration("/**", config);
        FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
        bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
        return bean;
    }
}
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