Have poll fail in case of https to http redirection.
Have poll fail in case of https to http redirection.

Refs #20

nacyot/uptime,traskat/uptime,SaravananPerumal23/uptime2,aregpetrosyan/web,GuptaVineet-IBM/upTime_ford,phanan/uptime,askcs/uptime,erpframework/uptime,scalp42/uptime,b-pedzik/uptime,aregpetrosyan/web,Maluuba/uptime,SaravananPerumal23/uptime2,0x8BADFOOD/uptime,fzaninotto/uptime,WillGuan105/uptime,f33rx/docker-uptime,SufianHassan/uptime,blackboard/uptime,brianjking/uptime,prune998/uptime,rkmallik/uptime-openshift,arthurpro/uptime,cloudfoundry-community/uptime-cfready,MichaelStephan/uptime,gleicon/uptime,sinkingshriek/uptime,SpringerPE/uptime,bathree/uptime,ptisp/uptime,jraigneau/watchdog,ptisp/uptime,nerevu/uptime,blendlabs/uptime,heamon7/uptime,RafeHatfield/nodeuptime,memezilla/uptime,ifavo/uptime,nerevu/uptime,f33rx/docker-uptime,rkmallik/uptime-openshift