From 786104778cf9ce49f47aebcc3b9dc9b07bc23f87 Mon Sep 17 00:00:00 2001
From: igami <igami@users.noreply.github.com>
Date: Sun, 25 Jun 2017 19:32:30 +0000
Subject: [PATCH] 59_LuftdatenInfo: fixed error handling if no data returned

git-svn-id: https://svn.fhem.de/fhem/trunk@14572 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/59_LuftdatenInfo.pm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fhem/FHEM/59_LuftdatenInfo.pm b/fhem/FHEM/59_LuftdatenInfo.pm
index d5221ef7a..0912f5ca9 100644
--- a/fhem/FHEM/59_LuftdatenInfo.pm
+++ b/fhem/FHEM/59_LuftdatenInfo.pm
@@ -247,8 +247,10 @@ sub LuftdatenInfo_ParseHttpResponse($) {
     readingsSingleUpdate($hash, "state", "error", 1);
   }
   elsif($data eq "[]"){
-    if(   index($param->{url}, $hash->{SENSORID2}) > -1
-       && InternalVal($SELF, "SENSORIDS", "implicit") eq "implicit"
+    if(
+      InternalVal($SELF, "SENSORID2", undef)
+      && index($param->{url}, $hash->{SENSORID2}) > -1
+      && InternalVal($SELF, "SENSORIDS", "implicit") eq "implicit"
     ){
       delete($hash->{SENSORID2});