What version of Go are you using (go version)?

$ go version v1.13.5

Does this issue reproduce with the latest release?

Maybe ,this issue reproduce with the latest release.

What did you do?

package main

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

func main() {
	fmt.Println("vim-go")
	u := "http://admin:FSdf%30g52@192.168.1.1:8888"
	log.Println(u)
	uri, err := url.Parse(u)
	if err != nil {
		fmt.Println("=>", err)
	}
	log.Println(uri)
	URL := uri.String()
	log.Println(URL)
}

If you run this code , the %3 will miss

What did you expect to see?

I hope the net/url can clear distinction the correct URI, don't miss something.