From 7fea0b8bdf14242a6d21cffc1646e9f8f2152551 Mon Sep 17 00:00:00 2001
From: James Stubbington <jamesrstubbington@gmail.com>
Date: Sat, 14 Nov 2020 11:17:10 -0600
Subject: [PATCH] Fix for Newline in Headers when extraHeaders is Empty [577]
 (#578)

Closes https://github.com/Links2004/arduinoWebSockets/issues/577
---
 src/WebSocketsClient.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/WebSocketsClient.cpp b/src/WebSocketsClient.cpp
index bc6a42e..b4ba4a4 100644
--- a/src/WebSocketsClient.cpp
+++ b/src/WebSocketsClient.cpp
@@ -636,7 +636,7 @@ void WebSocketsClient::sendHeader(WSclient_t * client) {
     }
 
     // add extra headers; by default this includes "Origin: file://"
-    if(client->extraHeaders) {
+    if(client->extraHeaders.length() > 0) {
         handshake += client->extraHeaders + NEW_LINE;
     }