diff --git a/core/components/modhelpers/classes/Request.php b/core/components/modhelpers/classes/Request.php
index 8f04782..cc3c96a 100644
--- a/core/components/modhelpers/classes/Request.php
+++ b/core/components/modhelpers/classes/Request.php
@@ -217,7 +217,7 @@ public function isAjax()
      */
     public function isJson()
     {
-        return str_contains($this->header('CONTENT_TYPE'), ['/json', '+json']);
+        return str_contains($this->header('CONTENT_TYPE'), '+json') || str_contains($this->header('CONTENT_TYPE'), '/json');
     }
 
     /**
@@ -858,4 +858,4 @@ public function __set($key, $value)
     {
         $this->offsetSet($key, $value);
     }
-}
\ No newline at end of file
+}