From 75ca49d89aca22fbd5f08c19c67ff7d178cec5e2 Mon Sep 17 00:00:00 2001
From: Alexander Cerutti <cerutti.alexander@gmail.com>
Date: Sat, 1 Jun 2019 14:01:25 +0200
Subject: [PATCH] Added existence check for readCertificates

---
 src/factory.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/factory.ts b/src/factory.ts
index 06ee3fa..41ed06a 100644
--- a/src/factory.ts
+++ b/src/factory.ts
@@ -209,7 +209,7 @@ function getModelBufferContents(model: BundleUnit): PartitionedBundle {
  */
 
 async function readCertificatesFromOptions(options: Certificates): Promise<FinalCertificates> {
-	if (!isValid(options, "certificatesSchema")) {
+	if (!(options && Object.keys(options).length && isValid(options, "certificatesSchema"))) {
 		throw new Error("Unable to create Pass: certificates schema validation failed.");
 	}