MAGETWO-67492: Fixed layout handle for cms page #9247

 - Merge Pull Request #9247 from simpleadm/magento2:fix-cms-page-layout-handles

Author: Oleksii Korshenko

app/code/Magento/Cms/Helper/Page.php

@@ -152,7 +152,7 @@ public function prepareResultPage(Action $action, $pageId = null)
         $resultPage = $this->resultPageFactory->create();
         $this->setLayoutType($inRange, $resultPage);
         $resultPage->addHandle('cms_page_view');
-        $resultPage->addPageLayoutHandles(['id' => $this->_page->getIdentifier()]);
+        $resultPage->addPageLayoutHandles(['id' => str_replace('/', '_', $this->_page->getIdentifier())]);
 
         $this->_eventManager->dispatch(
             'cms_page_render',