// empty inputs, instead returns "empty" as is.
func pathClean(p string) string {
	cp := path.Clean(p)
	if cp == "." {
		return ""
	}
	return cp
}

func trimLeadingSlash(ep string) string {
	if len(ep) > 0 && ep[0] == '/' {
		// Path ends with '/' preserve it
		if ep[len(ep)-1] == '/' && len(ep) > 1 {
			ep = path.Clean(ep)
			ep += slashSeparator
		} else {