From f8ec64d46f35d4d684b53cca7d1c69b896db8b57 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 13 Jan 2016 20:20:18 -0800
Subject: [PATCH] do not throw on empty stack.

---
 lib/bcoin/script.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index e9f5ac24..506fc904 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -180,8 +180,9 @@ script.verify = function verify(input, output, tx, i, flags) {
     // Reset the stack
     stack = copy;
 
-    // Stack should _never_ be empty at this point
-    assert(stack.length !== 0);
+    // Stack should not be empty at this point
+    if (stack.length === 0)
+      return false;
 
     // Grab the real redeem script
     redeem = stack.pop();