diff --git a/php/controller/createArticle-controller.php b/php/controller/createArticle-controller.php
index 9533580..a4c0fa2 100644
--- a/php/controller/createArticle-controller.php
+++ b/php/controller/createArticle-controller.php
@@ -60,11 +60,12 @@ if ($_SERVER["REQUEST_METHOD"] === "POST") {
             header("location: ../../index.php?pfad=createArticle");
             exit();
         }
+        $validatedCategory = $category;
         echo "Kategorievalidierung erfolgreich";
 
         // -------------------------- Eingabevalidierung der tags: ----------------------
         if (isset($_POST['tags'])) {
-            $tags = trim($_POST['tags']);
+            $tags = $_POST['tags'];
         } else {
             $tags = '';
         }
@@ -96,8 +97,10 @@ if ($_SERVER["REQUEST_METHOD"] === "POST") {
         echo "Tagvalidierung erfolgreich";
 
         // ----------------- Übertragung der validierten Daten in ArticleManager: ---------------------------
-        if (!isset($validatedTitle) || !isset($validatedContent) || !isset($validatedCategory) || !isset($validatedTags)) {
+        if (!isset($validatedTitle) || !isset($validatedContent) || !isset($validatedAuthor) || !isset($validatedCategory) || !isset($validatedTags)) {
             $_SESSION["message"] = "validation_missing";
+            header("location: ../../index.php?pfad=createArticle");
+            exit();
         } else {
             try {
                 $articleManager = ArticleManager::getInstance();