对等GO重置连接

I'm trying to do a request in GO but I always receive "Connection reset by peer" error. The following code shows how I'm doing the request:

req, err := http.NewRequest("GET", url, nil)
if err != nil {
    return nil, err
}
client := = &http.Client{}
resp, err := client.Do(req)

if err != nil {
    return nil, err
}

defer resp.Body.Close()
fmt.Println(resp.Body)

...and I receive:

Get https://example.com: read tcp 1.2.3.4:1234->5.6.7.8:5678: read: connection reset by peer

When I do curl https://example.com I receive response form the server. Why can't I do the request in GO?

Your code works if I use it against a URL like https://example.com. Are you sure you are passing it the correct URL?

package main

import (
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {
    url := "https://example.com"
    req, err := http.NewRequest("GET", url, nil)
    if err != nil {
        fmt.Println(err)
        return
    }

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println(err)
        return
    }

    fmt.Println("OK")
    defer resp.Body.Close()

    bytes, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        fmt.Println(err)
        return
    }

    str := string(bytes[:])
    fmt.Printf("%s", str)
}