为什么PostForm无法在golang gae中重定向？

Question

I am trying to post a form using golang. My code is below

client := urlfetch.Client(c)

resp, err := client.PostForm("example.com", url.Values{})
if err != nil {
    panic(err)
}

I am getting 200 OK response but it is not redirecting to example.com

Am i doing something wrong?

Answer 1

A net.http.Client.PostForm() issues a POST to the specified URL, with data's keys and values urlencoded as the request body.

But that doesn't mean it instruct the target website to redirect anything.
As shown in this thread, the client would follow a redirect only if the website returned a 302 code, respecting the Post/Redirect/Get web development design pattern that prevents some duplicate form submissions.
(Issue 4145, fixed with commit 08ce7f1 for go 1.1, May 2013)