From 19064c3af54f3b6b5d869f3f8f40bd6f5dd97f7c Mon Sep 17 00:00:00 2001
From: "kai.lorenz" <kl@plusb.de>
Date: Tue, 14 Mar 2017 17:52:41 +0100
Subject: [PATCH] [BUGFIX] reset backPath after varnish cache flush #18

---
 Classes/Hooks/Cache.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Classes/Hooks/Cache.php b/Classes/Hooks/Cache.php
index 20e945f..3d9a917 100644
--- a/Classes/Hooks/Cache.php
+++ b/Classes/Hooks/Cache.php
@@ -27,6 +27,8 @@
 
 use Mittwald\Varnishcache\Service\VarnishCacheService;
 use TYPO3\CMS\Core\DataHandling\DataHandler;
+use TYPO3\CMS\Core\Page\PageRenderer;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 
 /**
@@ -66,6 +68,10 @@ public function clearCachePostProc(array &$params, DataHandler $dataHandler) {
             foreach ($params['pageIdArray'] as $pageId) {
                 $this->getVarnishCacheService()->flushCache($pageId);
             }
+
+            $pageRenderer = GeneralUtility::makeInstance(PageRenderer::class);
+            $pageRenderer->setBackPath(NULL);
+
             return;
         }