From 7647f884a95689af7e6df0b46d5b0f302126e95c Mon Sep 17 00:00:00 2001
From: Alex <alex@akselrod.org>
Date: Thu, 11 May 2017 21:34:05 -0600
Subject: [PATCH] rpcserver: Return 0-length headers via RPC as they're now
 valid.

---
 rpcserver.go | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/rpcserver.go b/rpcserver.go
index bbc58061..7c0ee344 100644
--- a/rpcserver.go
+++ b/rpcserver.go
@@ -2157,9 +2157,7 @@ func handleGetCFilter(s *rpcServer, cmd interface{}, closeChan <-chan struct{})
 	}
 
 	filterBytes, err := s.server.cfIndex.FilterByBlockHash(hash, c.Extended)
-	if len(filterBytes) > 0 {
-		rpcsLog.Debugf("Found committed filter for %v", hash)
-	} else {
+	if err != nil {
 		rpcsLog.Debugf("Could not find committed filter for %v: %v",
 			hash, err)
 		return nil, &btcjson.RPCError{
@@ -2168,6 +2166,7 @@ func handleGetCFilter(s *rpcServer, cmd interface{}, closeChan <-chan struct{})
 		}
 	}
 
+	rpcsLog.Debugf("Found committed filter for %v", hash)
 	return hex.EncodeToString(filterBytes), nil
 }