diff --git a/http-server/Message/Response.php b/http-server/Message/Response.php
index d8e49948..5c8f2c99 100644
--- a/http-server/Message/Response.php
+++ b/http-server/Message/Response.php
@@ -43,16 +43,28 @@ class Response implements ResponseInterface, \Server\ResponseInterface
 	 */
 	public function withContentType(string $type): static
 	{
-		if (!in_array($type, [
-			Response::CONTENT_TYPE_HTML, Response::CONTENT_TYPE_JSON,
-			Response::CONTENT_TYPE_STREAM, Response::CONTENT_TYPE_XML
-		])) {
-			throw new Exception('Wrong content type.');
-		}
 		return $this->withHeader('Content-Type', $type);
 	}
 
 
+	/**
+	 * @return bool
+	 */
+	#[Pure] public function hasContentType(): bool
+	{
+		return $this->hasHeader('Content-Type');
+	}
+
+
+	/**
+	 * @return string
+	 */
+	#[Pure] public function getContentType(): string
+	{
+		return $this->getHeaderLine('Content-Type');
+	}
+
+
 	/**
 	 * @return int
 	 */
diff --git a/http-server/Service/Http.php b/http-server/Service/Http.php
index fdbb453c..0024c91c 100644
--- a/http-server/Service/Http.php
+++ b/http-server/Service/Http.php
@@ -8,7 +8,7 @@ use Http\Exception\RequestException;
 use Http\Route\Node;
 use Kiri\Core\Help;
 use Server\Events\OnAfterRequest;
-use Server\Message\Stream;
+use Server\Message\Response as MsgResponse;
 use Server\ResponseInterface;
 use Server\SInterface\OnClose;
 use Server\SInterface\OnConnect;
@@ -16,7 +16,6 @@ use Swoole\Error;
 use Swoole\Http\Request;
 use Swoole\Http\Response;
 use Swoole\Server;
-use Server\Message\Response as MsgResponse;
 
 /**
  *
@@ -68,14 +67,13 @@ class Http extends \Server\Abstracts\Http implements OnClose, OnConnect
 	private function transferToResponse($responseData): ResponseInterface
 	{
 		$interface = $this->response->withStatus(200);
-		if (!$interface->hasHeader('Content-Type')) {
+		if (!$interface->hasContentType()) {
 			$interface->withContentType(MsgResponse::CONTENT_TYPE_JSON);
 		}
 		$responseData = $interface->_toArray($responseData);
-		if ($interface->getHeader('Content-Type') == MsgResponse::CONTENT_TYPE_XML) {
-			$responseData = Help::toXml($responseData);
-		}
-		if (is_array($responseData)) {
+		if ($interface->getContentType() == MsgResponse::CONTENT_TYPE_XML) {
+			$interface->stream->write(Help::toXml($responseData));
+		} else if (is_array($responseData)) {
 			$interface->stream->write(json_encode($responseData));
 		} else {
 			$interface->stream->write((string)$responseData);