Pinning，Mutual authentication，EV等passthrough功能在windows10测试通过。

platform/src/ssl_stream.cpp

@@ -1207,6 +1207,7 @@ static void peek_chello_on_succ(future_result_t * result, void * user)
 	ctx->s_stream = s_stream;
 	if(s_stream->up_parts.action==SSL_ACTION_PASSTHROUGH)
 	{
+		promise_dettach_ctx(p);
 		promise_success(p, ctx);
 		wrap_ssl_connect_server_ctx_free(ctx);
 	}