[BUGFIX] Return empty string if no file reference is provided

smichaelsen · Jun 16, 2017 · 7d706cf · 7d706cf
1 parent 403b280
commit 7d706cf
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Classes/ViewHelpers/ResponsivePictureViewHelper.php b/Classes/ViewHelpers/ResponsivePictureViewHelper.php
@@ -40,6 +40,9 @@ public function render(): string
     {
         /** @var FileReference $fileReference */
         $fileReference = $this->arguments['fileReference'];
+        if (!$fileReference instanceof FileReference) {
+            return '';
+        }
         $cropString = $fileReference->getProperty('crop');
         $cropVariantCollection = CropVariantCollection::create((string) $cropString);
         $sourceMarkups = [];