Add missing favicon url

src/Bundle/ChillWopiBundle/src/Controller/Test.php

@@ -68,6 +68,7 @@ final class Test
             throw new Exception(sprintf('Unable to find mime type %s', $storedObject->getType()));
         }
 
+        $configuration['favIconUrl'] = '';
         $configuration['access_token'] = $this->security->getUser()->getUsername();
 
         $configuration['server'] = $this