From 0a6ed64280d3a725cc73c55ea83e0504c2956866 Mon Sep 17 00:00:00 2001
From: rudolfkoenig <>
Date: Sat, 5 Feb 2022 10:10:43 +0000
Subject: [PATCH] 01_FHEMWEB.pm: fixing websocket crash on UTF-8 data (Forum
 #125866)

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@25631 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 FHEM/01_FHEMWEB.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/FHEM/01_FHEMWEB.pm b/FHEM/01_FHEMWEB.pm
index 9c8c5df32..4a6fa1d0b 100644
--- a/FHEM/01_FHEMWEB.pm
+++ b/FHEM/01_FHEMWEB.pm
@@ -715,6 +715,7 @@ FW_addToWritebuffer($$@)
 {
   my ($hash, $txt, $callback, $nolimit) = @_;
 
+  utf8::encode($txt) if(utf8::is_utf8($txt) && $txt =~ m/[^\x00-\xFF]/ );
   if( $hash->{websocket} ) {
     my $len = length($txt);
     if( $len < 126 ) {