From 26b661ef54d358061fc8f5c06eb0e7e207ec5d3f Mon Sep 17 00:00:00 2001
From: Ivan Novak <admin@clab.hr>
Date: Tue, 16 Apr 2024 14:41:56 +0200
Subject: [PATCH] check for undefined privateKey instead of null

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

diff --git a/src/signed-xml.ts b/src/signed-xml.ts
index 86ff8e9..e537e4e 100644
--- a/src/signed-xml.ts
+++ b/src/signed-xml.ts
@@ -341,7 +341,7 @@ export class SignedXml {
     const signedInfoCanon = this.getCanonSignedInfoXml(doc);
     const signer = this.findSignatureAlgorithm(this.signatureAlgorithm);
     const privateKey = this.getPrivateKey();
-    if (privateKey == null) {
+    if (privateKey === undefined) {
       throw new Error("Private key is required to compute signature");
     }
     if (typeof callback === "function") {