diff --git a/core/modules/rest/src/Tests/RESTTestBase.php b/core/modules/rest/src/Tests/RESTTestBase.php
index ba78428..3d971ff 100644
--- a/core/modules/rest/src/Tests/RESTTestBase.php
+++ b/core/modules/rest/src/Tests/RESTTestBase.php
@@ -72,7 +72,6 @@ protected function setUp() {
 
   protected function cookieCurlOptions() {
 
-    $cookies = [];
     foreach ($this->cookies as $key => $cookie) {
       $cookies[] = $key . '=' . $cookie['value'];
     }
@@ -108,7 +107,6 @@ protected function cookieCurlOptions() {
       }
       $curl_options[CURLOPT_COOKIE] .= implode('; ', $cookies) . ';';
     }
-    debug($curl_options);
 
     return $curl_options;
   }
@@ -167,7 +165,7 @@ protected function httpRequest($url, $method, $body = NULL, $mime_type = NULL) {
         $options += [
           'headers' => [
             'Content-Type' => $mime_type,
-            'X-CSRF-Token' => $token
+            'X-CSRF-Token' => $token,
           ],
           'body' => $body,
         ];
@@ -178,7 +176,7 @@ protected function httpRequest($url, $method, $body = NULL, $mime_type = NULL) {
         $options += [
           'headers' => [
             'Content-Type' => $mime_type,
-            'X-CSRF-Token' => $token
+            'X-CSRF-Token' => $token,
           ],
           'body' => $body,
         ];
@@ -189,7 +187,7 @@ protected function httpRequest($url, $method, $body = NULL, $mime_type = NULL) {
         $options += [
           'headers' => [
             'Content-Type' => $mime_type,
-            'X-CSRF-Token' => $token
+            'X-CSRF-Token' => $token,
           ],
           'body' => $body,
         ];
@@ -199,7 +197,7 @@ protected function httpRequest($url, $method, $body = NULL, $mime_type = NULL) {
       case 'DELETE':
         $options += [
           'headers' => [
-            'X-CSRF-Token' => $token
+            'X-CSRF-Token' => $token,
           ],
         ];
         $response = $client->delete($url, $options);