Enable HTTP2 in Undertow with Spring Boot

SpringBootUndertowHTTP2.java

public class SpringBootUndertowHTTP2 {
	@Bean
	UndertowEmbeddedServletContainerFactory embeddedServletContainerFactory() {
		UndertowEmbeddedServletContainerFactory factory = new UndertowEmbeddedServletContainerFactory();
		factory.addBuilderCustomizers(
				builder -> builder.setServerOption(UndertowOptions.ENABLE_HTTP2, true));
		return factory;
	}	
}

kotlin spring 2.0 with undertow

@Configuration
class ServerConfiguration {
    @Bean
    fun embeddedServletContainerFactory(): UndertowServletWebServerFactory {
        val factory = UndertowServletWebServerFactory()
        factory.addBuilderCustomizers(UndertowBuilderCustomizer { builder ->
            builder.setServerOption(UndertowOptions.ENABLE_HTTP2, true)
        })
        return factory
    }
}

It didn't work for POST and PATCH method. It works for DELETE and GET. How to make it works for POST and PATCH method ?

Thanks