Extract domain from URL string
extract = require "@tech_userreport.com/extractdomain"
extract "ya.ru" # ya.ru
extract "ya.ru/" # ya.ru
extract "ya.ru:80" # ya.ru
extract "ya.ru:80/" # ya.ru
extract "protocol://ya.ru:80/" # ya.ru
extract "protocol://ya.ru:80/?query" # ya.ru