Disabling route normalizer for the /graphql route (#697)

Author: Lukas von Blarer

src/Routing/QueryRoutes.php

@@ -43,6 +43,7 @@ protected function alterRoutes(RouteCollection $collection) {
         'schema' => $key,
         '_graphql' => TRUE,
         '_controller' => '\Drupal\graphql\Controller\RequestController::handleRequest',
+        '_disable_route_normalizer' => 'TRUE',
       ], [
         '_graphql_query_access' => 'TRUE',
       ], [