From d9728940d28dbe704ad090a2faf102703814518c Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 30 Jul 2015 10:13:35 -0400
Subject: [PATCH] Fix occasional error with sending while readyState !== 1

Under certain conditions, noVNC would attempt to flush the web socket
while it was disconnected, before the disconnected state was picked up.
This casues noVNC to crash ungracefully and the parent window is not
notified - leading to no chance at recovery without a page refresh.
---
 include/websock.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/websock.js b/include/websock.js
index cc82e5a2..8e0660e7 100644
--- a/include/websock.js
+++ b/include/websock.js
@@ -175,7 +175,7 @@ function Websock() {
             }
 
             if (this._websocket.bufferedAmount < this.maxBufferedAmount) {
-                if (this._sQ.length > 0) {
+                if (this._sQ.length > 0 && this._websocket.readyState === 1) {
                     this._websocket.send(this._encode_message());
                     this._sQ = [];
                 }