Update app.py

app.py

@@ -122,7 +122,7 @@ def categorize(url):
     try:
         article_content = crawURL(url)
         result = process_api(article_content)
-        return result
+        return jsonify(result)
     except Exception as error:
         if hasattr(error, 'message'):
             return {"error_message": error.message}