From 9da7bdb27de6a2368a48fc0c245b83c1e35587de Mon Sep 17 00:00:00 2001
From: Gerson Alexander Pardo Gamez <jerson@users.noreply.github.com>
Date: Wed, 11 Oct 2017 12:34:01 -0500
Subject: [PATCH] Fixed fireOnLeave when connection is already closed

Former-commit-id: 664afda8f052b9c7596f82d66cc4faeb6e09148d
---
 websocket/connection.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/websocket/connection.go b/websocket/connection.go
index ef18b967..a928b628 100644
--- a/websocket/connection.go
+++ b/websocket/connection.go
@@ -477,6 +477,10 @@ func (c *connection) OnLeave(roomLeaveCb LeaveRoomFunc) {
 }
 
 func (c *connection) fireOnLeave(roomName string) {
+	// check if connection is already closed
+	if c == nil {
+		return
+	}
 	// fire the onRoomLeaveListeners
 	for i := range c.onRoomLeaveListeners {
 		c.onRoomLeaveListeners[i](roomName)