diff --git a/.gitignore b/.gitignore
index 8219a80..bbe1f95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ public/
 vendor/
 var/
 .phpunit.result.cache
+.idea/
diff --git a/Classes/Middleware/InternalSsiRedirectMiddleware.php b/Classes/Middleware/InternalSsiRedirectMiddleware.php
index 78a06d3..9e05106 100644
--- a/Classes/Middleware/InternalSsiRedirectMiddleware.php
+++ b/Classes/Middleware/InternalSsiRedirectMiddleware.php
@@ -40,7 +40,21 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
                     ->withQueryParams([])
                     ->withUri($request->getUri()->withPath($originalRequestUri->getPath())->withQuery($originalRequestUri->getQuery()));
                 $handler->handle($subRequest);
-                $content = $this->lastRenderedContentRegister->get();
+                $keyParts = explode('_', (string) $ssiInclude);
+                if (isset($keyParts[2])) {
+                    $key = $keyParts[2];
+                    // may strip the .html extension
+                    $position = strrpos($key, '.');
+                    if ($position) {
+                        $key = substr($key, 0, $position);
+                    }
+
+                    $content = $this->lastRenderedContentRegister->get($key);
+                } elseif (file_exists($absolutePath)) {
+                    $content = file_get_contents($absolutePath);
+                } else {
+                    $content = '<error>EXT:ssi_include error path:' . $ssiInclude . '</error>';
+                }
             }
 
             return new HtmlResponse($content ?: '<error>EXT:ssi_include error path:' . $absolutePath . '</error>');
diff --git a/Classes/Register/LastRenderedContentRegister.php b/Classes/Register/LastRenderedContentRegister.php
index 4460f92..b2ecc5d 100644
--- a/Classes/Register/LastRenderedContentRegister.php
+++ b/Classes/Register/LastRenderedContentRegister.php
@@ -8,15 +8,22 @@
 
 class LastRenderedContentRegister implements SingletonInterface
 {
-    private string $lastRenderedContent = '';
+    /**
+     * @var array<string, string>
+     */
+    private array $lastRenderedContent = [];
 
-    public function set(string $content): void
+    public function set(string $key, string $content): void
     {
-        $this->lastRenderedContent = $content;
+        $this->lastRenderedContent[$key] = $content;
     }
 
-    public function get(): string
+    public function get(string $key): string
     {
-        return $this->lastRenderedContent;
+        if (!isset($this->lastRenderedContent[$key])) {
+            return '';
+        }
+
+        return $this->lastRenderedContent[$key];
     }
 }
diff --git a/Classes/Utility/IsCacheableUtility.php b/Classes/Utility/IsCacheableUtility.php
index 056182d..8e5fe05 100644
--- a/Classes/Utility/IsCacheableUtility.php
+++ b/Classes/Utility/IsCacheableUtility.php
@@ -15,6 +15,10 @@
  */
 class IsCacheableUtility
 {
+    public function __construct(private readonly Context $context)
+    {
+    }
+
     public function usePageCache(?TypoScriptFrontendController $typoScriptFrontendController = null, bool $usePageCache = true): bool
     {
         if (!$usePageCache) {
@@ -26,7 +30,7 @@ public function usePageCache(?TypoScriptFrontendController $typoScriptFrontendCo
             return $usePageCache;
         }
 
-        $context = GeneralUtility::makeInstance(Context::class);
+        $context = $this->context;
         assert($context instanceof Context);
         $backendUserContext = $context->getAspect('backend.user');
         if ($backendUserContext->isLoggedIn()) {
diff --git a/Classes/ViewHelpers/RenderIncludeViewHelper.php b/Classes/ViewHelpers/RenderIncludeViewHelper.php
index 3b5d780..348adf5 100644
--- a/Classes/ViewHelpers/RenderIncludeViewHelper.php
+++ b/Classes/ViewHelpers/RenderIncludeViewHelper.php
@@ -14,7 +14,6 @@
 use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
 use TYPO3\CMS\Core\Cache\CacheManager;
 use TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException;
-use TYPO3\CMS\Core\Cache\Frontend\VariableFrontend;
 use TYPO3\CMS\Core\Configuration\Exception\ExtensionConfigurationExtensionNotConfiguredException;
 use TYPO3\CMS\Core\Configuration\Exception\ExtensionConfigurationPathDoesNotExistException;
 use TYPO3\CMS\Core\Configuration\ExtensionConfiguration;
@@ -85,10 +84,13 @@ public function renderNonStatic(?array $arguments = null, ?Closure $renderChildr
         $this->renderingContext = $renderingContext ?? $this->renderingContext;
         $renderChildrenClosure ??= $this->buildRenderChildrenClosure();
 
+        // generate the cache filename
+        $name = $this->validateName($this->arguments);
+
         if ($this->isBackendUser()) {
             $content = parent::renderStatic($this->arguments, $renderChildrenClosure, $this->renderingContext);
             // Put the code to register to use in InternalSsiRedirectMiddleware if the site comes from page cache
-            $this->lastRenderedContentRegister->set($content);
+            $this->lastRenderedContentRegister->set($name, $content);
             return $content;
         }
 
@@ -100,9 +102,7 @@ public function renderNonStatic(?array $arguments = null, ?Closure $renderChildr
             $groupString = '_' . implode('-', $frontendUser->getGroupIds());
         }
 
-        // generate the cache filename
-        $name = $this->validateName($this->arguments);
-        $filename = $this->getSiteName() . '_' . $this->getLangauge() . '_' . $name . $groupString . '.html';
+        $filename = $this->getSiteName() . '_' . $this->getLanguage() . '_' . $name . $groupString . '.html';
 
         // If the cache has not the proper entry, generate it
         $cache = $this->cacheManager->getCache('aus_ssi_include_cache');
@@ -116,10 +116,10 @@ public function renderNonStatic(?array $arguments = null, ?Closure $renderChildr
 
             $cacheTags = ['tx_ssiinclude_' . $name, ...$this->arguments['cacheTags']];
             $cache->set($filename, $html, $cacheTags, $this->arguments['cacheLifeTime']);
-            $this->lastRenderedContentRegister->set($html);
+            $this->lastRenderedContentRegister->set($name, $html);
         }
 
-        // generate the variables needed for include commments
+        // generate the variables needed for include comments
         $reqUrl = $this->filenameUtility->getReqUrl($filename);
         $method = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get('ssi_include', 'method');
         if ($method === self::METHOD_ESI) {
@@ -145,7 +145,7 @@ private function validateName(array $arguments): string
     /**
      * @throws AspectNotFoundException
      */
-    protected function getLangauge(): int
+    protected function getLanguage(): int
     {
         return $this->context->getPropertyFromAspect('language', 'id');
     }