[FIX] PrintContoller : correction options header/footer

Controllers/PrintController.php

@@ -292,6 +292,7 @@ class PrintController extends ControllerBase
                                     $pageNumber = $requestBody['pageNumber'];
                                 }
 
+                                // header / footer
                                 $header = isset($requestBody['options']) && isset($requestBody['options']['header']) ? $requestBody['options']['header'] : '';
                                 $footer = isset($requestBody['options']) && isset($requestBody['options']['footer']) ? $requestBody['options']['footer'] : '';