From fe565569a1235e45d360e87f79e542cf374eccf3 Mon Sep 17 00:00:00 2001
From: Ian Gulliver <flamingcow@gmail.com>
Date: Wed, 25 Nov 2020 16:12:57 -0800
Subject: [PATCH] Ignore heartbeat messages with empty control fields

---
 present/present.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/present/present.py b/present/present.py
index 19fb18f..9fd8852 100755
--- a/present/present.py
+++ b/present/present.py
@@ -43,6 +43,8 @@ while True:
         for event in client.events():
             parsed = json.loads(event.data)
             control = parsed['control']
+            if control == '':
+                continue
             if control not in ALLOWED_CONTROLS:
                 print(f'INVALID CONTROL: {control}')
                 continue