in websocketserver/websocketserver.go [120:133]
func (s *Server) isValidOrigin(host string) bool {
if len(s.validOrigins) == 0 {
return true
}
nHost := common.NormalizedHostname(host)
for _, validOrigin := range s.validOrigins {
if validOrigin == "*" || nHost == validOrigin {
return true
}
}
return false
}