From 2d906f65cc58e2b90ea75df97021342e937a1fcf Mon Sep 17 00:00:00 2001
From: Sergey Ukustov <sergey@ukstv.me>
Date: Mon, 14 Jan 2019 13:16:42 +0300
Subject: [PATCH] Empty witness is empty string

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

diff --git a/lib/script/witness.js b/lib/script/witness.js
index 632377327..c4ed87a3b 100644
--- a/lib/script/witness.js
+++ b/lib/script/witness.js
@@ -433,7 +433,7 @@ class Witness extends Stack {
   toJSON() {
     let result = this.toRaw().toString('hex');
     if (result === '00') {
-      result = null;
+      result = '';
     }
     return result;
   }