From 4530ecfe82d051439ed15b3d3eb5fb27caac474e Mon Sep 17 00:00:00 2001
From: blacktemplar <blacktemplar@a1.net>
Date: Sat, 4 Apr 2020 14:22:27 +0200
Subject: [PATCH] allow empty header

---
 lib/signer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/signer.js b/lib/signer.js
index 3262ac2..60e0566 100644
--- a/lib/signer.js
+++ b/lib/signer.js
@@ -393,7 +393,7 @@ module.exports = {
         stringToSign += '(opaque): ' + opaque;
       } else {
         var value = request.getHeader(h);
-        if (value === undefined || value === '') {
+        if (value === undefined) {
           throw new MissingHeaderError(h + ' was not in the request');
         }
         stringToSign += h + ': ' + value;