diff --git a/http-server/Constrict/ResponseEmitter.php b/http-server/Constrict/ResponseEmitter.php
index e0930306..74af462e 100644
--- a/http-server/Constrict/ResponseEmitter.php
+++ b/http-server/Constrict/ResponseEmitter.php
@@ -42,6 +42,8 @@ class ResponseEmitter implements Emitter
 		$response->header('Server', 'swoole');
 		$response->header('Swoole-Version', swoole_version());
 
+		var_dump($response->header);
+
 		if (!($emitter instanceof OnDownloadInterface)) {
 			$response->end($emitter->getBody()->getContents());
 		} else {