$ relay connect --name www http://localhost:4000/
http://demo-1.webrelay.io <----> http://localhost:4000/
1.5110973039938712e+09 info client starting {"version": "develop"}
1.5110973041917999e+09 info adding HTTP tunnel demo-1.webrelay.io ---> http://localhost:4000/
1.511097304192018e+09 info tunnel proxy configuration updated