[FrameworkBundle] fix config declaration of http_cache option

nicolas-grekas · nicolas-grekas · commit 2514cf1c1d19 · 2020-10-15T10:20:12.000+02:00
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -218,6 +218,7 @@ private function addHttpCacheSection(ArrayNodeDefinition $rootNode)
                 ->arrayNode('http_cache')
                     ->info('HTTP cache configuration')
                     ->canBeEnabled()
+                    ->fixXmlConfig('private_header')
                     ->children()
                         ->booleanNode('debug')->defaultValue('%kernel.debug%')->end()
                         ->enumNode('trace_level')
@@ -227,8 +228,6 @@ private function addHttpCacheSection(ArrayNodeDefinition $rootNode)
                         ->integerNode('default_ttl')->end()
                         ->arrayNode('private_headers')
                             ->performNoDeepMerging()
-                            ->requiresAtLeastOneElement()
-                            ->fixXmlConfig('private_header')
                             ->scalarPrototype()->end()
                         ->end()
                         ->booleanNode('allow_reload')->end()
