From 4357bd1bebfacc0f88a04a60217353ac59b82887 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@alhur.es>
Date: Thu, 14 Jan 2021 22:07:53 -0300
Subject: [PATCH] fix bug when removing key from listenership.

---
 listener.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/listener.go b/listener.go
index 66fcd99..70f5083 100644
--- a/listener.go
+++ b/listener.go
@@ -37,6 +37,11 @@ func unwatchPubKey(excludedKey string, ws *websocket.Conn) {
 			if existingWs == ws {
 				continue
 			}
+			if i == len(wss) {
+				// if we reach this point it is because the key we were
+				// excluding wasn't here in the first place
+				return
+			}
 			newWss[i] = existingWs
 			i++
 		}