}
// WriteProxy is like Write but writes the request in the form
-// expected by an HTTP proxy. It includes the scheme and host
-// name in the URI instead of using a separate Host: header line.
-// If req.RawURL is non-empty, WriteProxy uses it unchanged
-// instead of URL but still omits the Host: header.
+// expected by an HTTP proxy. In particular, WriteProxy writes the
+// initial Request-URI line of the request with an absolute URI, per
+// section 5.1.2 of RFC 2616, including the scheme and host. If
+// req.RawURL is non-empty, WriteProxy uses it unchanged. In either
+// case, WriteProxy also writes a Host header, using either req.Host
+// or req.URL.Host.
func (req *Request) WriteProxy(w io.Writer) os.Error {
return req.write(w, true)
}