diff --git a/Version/Hixie76.php b/Version/Hixie76.php
index 1692eb0..6f91435 100644
--- a/Version/Hixie76.php
+++ b/Version/Hixie76.php
@@ -40,8 +40,8 @@ class Hixie76 implements VersionInterface {
           , 'Sec-WebSocket-Location' => 'ws://' . $request->getHeader('Host', true) . $request->getPath()
         );
 
-        $response = new Response('101', $headers, $body);
-        $response->setStatus('101', 'WebSocket Protocol Handshake');
+        $response = new Response(101, $headers, $body);
+        $response->setStatus(101, 'WebSocket Protocol Handshake');
 
         return $response;
     }
@@ -68,7 +68,7 @@ class Hixie76 implements VersionInterface {
     }
 
     public function generateKeyNumber($key) {
-        if (0 === substr_count($key, ' ')) {
+        if (0 === mb_substr_count($key, ' ', 'ASCII')) {
             return '';
         }
 
diff --git a/Version/RFC6455.php b/Version/RFC6455.php
index 1be2246..0fcf009 100644
--- a/Version/RFC6455.php
+++ b/Version/RFC6455.php
@@ -4,7 +4,6 @@ use Ratchet\WebSocket\Version\RFC6455\HandshakeVerifier;
 use Guzzle\Http\Message\RequestInterface;
 use Guzzle\Http\Message\Response;
 
-
 /**
  * @link http://tools.ietf.org/html/rfc6455
  */
diff --git a/WsServer.php b/WsServer.php
index 619ae9e..c746f3c 100644
--- a/WsServer.php
+++ b/WsServer.php
@@ -171,7 +171,6 @@ class WsServer implements MessageComponentInterface {
      * {@inheritdoc}
      */
     public function onError(ConnectionInterface $conn, \Exception $e) {
-var_dump($e);
         if ($conn->WebSocket->established) {
             $this->_decorating->onError($this->connections[$conn], $e);
         } else {