Spring Security Custom DSL Support for Webflux Security

Expected Behavior

The Servlet HttpSecurity builder supports defining a custom DSL that can be applied with the with method.

Example:

@Configuration
@EnableWebSecurity
public class Config {
    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        http
            .with(MyCustomDsl.customDsl(), (dsl) -> dsl
                .flag(true)
            )
            // ...
        return http.build();
    }
}

It would be nice if the same could be achieved with Webflux Security and ServerHttpSecurity.

Current Behavior

Currently ServerHttpSecurity does not provide this functionality.