Go中的ResolveReference时如何避免删除URL斜杠末尾

In the following example, end of URL / is removed, is there a way to keep the /?

package main

import (
    "fmt"
    "net/url"
    "path"
)

func main() {
    u, _ := url.Parse("http://localhost:5100")
    relative, _ := url.Parse(path.Join("hello/"))
    fmt.Println(u.ResolveReference(relative))
}

Output:

http://localhost:5100/hello