98 ipv6 proxy (#112)

* [+] fix: http proxy handled by http.Transport

* Update README.md

* Update README.md

README.md

@@ -340,6 +340,8 @@ Supported proxy formats include:
   
 *If a scheme is not provided, `http` will be used by default.*
 
+**If you need to use IPV6 proxies, please format it correctly with the appropriate scheme, for example:** `http://user:pass@[2001:0db8:85a3:0000:0000:8a2e:0370:7334]:8080`
+
 ```go
 session := azuretls.NewSession()
 defer session.Close()

connection.go

@@ -311,7 +311,9 @@ func (s *Session) initConn(req *Request) (conn *Conn, err error) {
 	defer conn.mu.Unlock()
 
 	if conn.Conn == nil {
-		if s.ProxyDialer != nil {
+		// if the request has HTTP scheme, the default http.Transport will
+		// take the responsibility of creating the connection
+		if s.ProxyDialer != nil && (req.parsedUrl.Scheme == SchemeHttps || req.parsedUrl.Scheme == SchemeWss) {
 			if err = s.getProxyConn(req, conn, host); err != nil {
 				return nil, err
 			}