From f9c9481a879263350ffb53533d1a3ebeadb2643b Mon Sep 17 00:00:00 2001
From: Darren Foley <darren.foley@bravurasecurity.com>
Date: Wed, 23 Aug 2023 15:56:07 -0600
Subject: [PATCH] GUACAMOLE-1849: Fix a bug in Parser.js where receive would
 reparse instructions multiple times.

---
 guacamole-common-js/src/main/webapp/modules/Parser.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guacamole-common-js/src/main/webapp/modules/Parser.js b/guacamole-common-js/src/main/webapp/modules/Parser.js
index 8cd93f2ca..aa3dbe5ee 100644
--- a/guacamole-common-js/src/main/webapp/modules/Parser.js
+++ b/guacamole-common-js/src/main/webapp/modules/Parser.js
@@ -208,7 +208,7 @@ Guacamole.Parser = function Parser() {
                     // Immediately truncate buffer if its contents have been
                     // completely parsed, so that the next call to receive()
                     // need not append to the buffer unnecessarily
-                    if (elementEnd + 1 === buffer.length) {
+                    if (!isBuffer && elementEnd + 1 === buffer.length) {
                         elementEnd = -1;
                         buffer = '';
                     }