The return value of cowboy_req:peer/1 is never undefined
The return value of cowboy_req:peer/1 is never undefined

unisontech/cowboy,layerhq/cowboy,noname007/cowboy,ninenines/cowboy,binarin/cowboy,276361270/cowboy,grahamrhay/cowboy,venkateshreddy/cowboy,turtleDeng/cowboy,bobos/ecweb,manastech/cowboy,hairyhum/cowboy,rabbitmq/cowboy,K2InformaticsGmbH/cowboy,yangchengjian/cowboy,LineMetrics/cowboy,nviennot/cowboy,binarin/cowboy,rbalint/pkg-erlang-cowboy,lpgauth/cowboy,unisontech/cowboy,heroku/cowboyku,kivra/cowboy,Reimerei/cowboy,callsign-core/cowboy_hybi00,CrankWheel/cowboy,layerhq/cowboy,cad627/cowboy,essen/cowboy,heroku/cowboy,dangjun625/cowboy,LineMetrics/cowboy,paulperegud/cowboy,bsmr-erlang/cowboy,cad627/cowboy,acrispin/cowboy,sile/cowboy,yangchengjian/cowboy,MSch/cowboy,callsign-core/cowboy_hybi00,omusico/cowboy,LineMetrics/cowboy,imdeps/cowboy,odo/cowboy,linearregression/cowboyku,pap/cowboy,ferd/cowboyku,heroku/cowboy,essen/cowboy,lpgauth/cowboy,manastech/cowboy