http Request sent delayed 
Hello,
Thanks for your work, I used your homebridge with LIFX plugins with success for a while now.
Recently I have added homebridge-http to use an ESP8266 relay, all seems to works well, but there is a strange behavior: 
If I send orders frequently ( from HomeKit ) all is working well, by frequently I mean less than 3 minutes.
if I don’t send an order for at least 5 minutes or more, after this period there is a hang-up, the order is sent but after about 20 seconds !
I have tried homebridge-http-switch, same behavior.
Thanks for advice