http请求中的转义感叹号

Question

I have a URL like

http://app.chat.com/avert!Callbcak.htm

to request.

I created the request with golang

req, _ := http.NewRequest("GET", "http://app.chat.com/avert!Callbcak.htm", nil)
fmt.Printf("%v
", req.URL.String())

result is

http://app.chat.com/avert%21Callbcak.htm

which is not going to work, the website needs URL that exclamation mark not escaped.

How can I request that URL correctly?

Answer 1

finally I found answer here

I process the request before sending:

func (s *Sender) regulateRequestURL(req *http.Request) {
    if strings.Contains(req.URL.Path, "!") {
        req.URL.Opaque = fmt.Sprintf("//%s%s", req.URL.Host, req.URL.Path)
    }
}