diff --git a/plugin/protocol/http2/src/http2_stream.cpp b/plugin/protocol/http2/src/http2_stream.cpp
index 4565c14..5d71df1 100644
--- a/plugin/protocol/http2/src/http2_stream.cpp
+++ b/plugin/protocol/http2/src/http2_stream.cpp
@@ -615,6 +615,8 @@ void h2_ops_request_set(struct tfe_http_session * session, struct tfe_http_half
 {
 	struct tfe_h2_session *stream_data = nghttp2_to_stream_data(session);
 	struct tfe_h2_half_private *half_user = nghttp2_to_half_private(req_user);
+	
+	half_user->header.flag = stream_data->req->header.flag;
 
 	stream_data->plugin_built_req = half_user;
 }
@@ -918,7 +920,7 @@ nghttp2_submit_frame_priority(struct tfe_h2_stream *connection,const nghttp2_fra
 									 &(priority->pri_spec));
 	if (rv != 0){
 		stream_action = ACTION_FORWARD_DATA;
-		TFE_LOG_ERROR(logger()->handle, "dir(%d), Submit ping error: %s\n",
+		TFE_LOG_ERROR(logger()->handle, "dir(%d), Submit priority error: %s\n",
 										 			 dir, nghttp2_strerror(rv));
 		return 0;
 	}
@@ -928,6 +930,7 @@ nghttp2_submit_frame_priority(struct tfe_h2_stream *connection,const nghttp2_fra
 		TFE_LOG_ERROR(logger()->handle, "dir(%d), Fatal send error: %s\n",
 													  dir, nghttp2_strerror(xret));
 	}
+	ngh2_session->last_sent_stream_id = MAX(ngh2_session->last_sent_stream_id, frame->hd.stream_id);	
 	connection->stream_action = stream_action;
 	return 0;
 }
@@ -1957,7 +1960,7 @@ nghttp2_on_stream_close(nghttp2_session *session, const nghttp2_frame *frame, co
     if (!h2_session)
         return 0;
 	if (error_code != 0){
-		const char *str = (dir == CONN_DIR_UPSTREAM) ? "Upstream" : "Downstream";
+		const char *str = (dir == CONN_DIR_UPSTREAM) ? "Simulation s" : "Simulation c";
 		TFE_LOG_DEBUG(logger()->handle, "%s close, id = %d, error_code = %d", str,
 												      stream_id, error_code);
 	}
@@ -2041,17 +2044,18 @@ nghttp2_client_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
 
 	/*proc build resp*/
 	struct tfe_h2_session *h2_session = (struct tfe_h2_session *)nghttp2_session_get_stream_user_data(session, stream_id);
-	if (h2_session == NULL){
+	if (h2_session == NULL)
+	{
 		return 0;
 	}
 	resp = h2_session->resp;
-	if (resp == NULL){
+	if (resp == NULL)
+	{
 		h2_stream_info->stream_action = ACTION_DROP_DATA;
 		return 0;
 	}
-
+	
 	evbuffer_add(resp->h2_payload.evbuf_body, input, input_len);
-
 	if (resp->h2_payload.gzip != HTTP2_CONTENT_ENCODING_NONE){
 		ret = inflate_read(input, input_len, &uncompr, &uncompr_len,
 						   &resp->h2_payload.inflate, resp->h2_payload.gzip);
@@ -2072,7 +2076,7 @@ nghttp2_client_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
 								   resp->event_cb_user);
 		}
 		if (flags == NGHTTP2_FLAG_END_STREAM){
-			resp->h2_payload.flags = 0;
+			resp->h2_payload.flags = NGHTTP2_FLAG_NONE;
 		}else{
 			resp->h2_payload.flags = flags;
 		}
@@ -2084,7 +2088,7 @@ nghttp2_client_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
 								   resp->event_cb_user);
 		}
 		if (flags == NGHTTP2_FLAG_END_STREAM){
-			resp->h2_payload.flags = 0;
+			resp->h2_payload.flags = NGHTTP2_FLAG_NONE;
 		}else{
 			resp->h2_payload.flags = flags;
 		}
@@ -2399,24 +2403,29 @@ nghttp2_server_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
 	len  = input_len;
 	/*todo post data scan**/
 	if (req->body_state == H2_READ_STATE_BEGIN){
-		if (req->event_cb) {
+		if (req->event_cb) 
+		{
 			req->event_cb(req, EV_HTTP_REQ_BODY_BEGIN, NULL, len,
 								   req->event_cb_user);
 		}
-		if (flags == NGHTTP2_FLAG_END_STREAM){
-			req->h2_payload.flags = 0;
-		}else{
+		if (flags == NGHTTP2_FLAG_END_STREAM)
+		{
+			req->h2_payload.flags = NGHTTP2_FLAG_NONE;
+		}else
+		{
 			req->h2_payload.flags = flags;
 		}
 		req->body_state = H2_READ_STATE_READING;
 	}
-	if (req->body_state == H2_READ_STATE_READING){
-		if (req->event_cb) {
+	if (req->body_state == H2_READ_STATE_READING)
+	{
+		if (req->event_cb)
+		{
 			req->event_cb(req, EV_HTTP_REQ_BODY_CONT, data, len,
 								   req->event_cb_user);
 		}
 		if (flags == NGHTTP2_FLAG_END_STREAM){
-			req->h2_payload.flags = 0;
+			req->h2_payload.flags = NGHTTP2_FLAG_NONE;
 		}else{
 			req->h2_payload.flags = flags;
 		}
@@ -2426,7 +2435,8 @@ nghttp2_server_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
 	stream_action = nghttp2_submit_data_by_h2_half(h2_stream_info, h2_session, CONN_DIR_DOWNSTREAM);
 	if (stream_action == ACTION_DROP_DATA){
 		xret = nghttp2_session_send(h2_stream_info->as_client);
-		if (xret != 0) {
+		if (xret != 0) 
+		{
 			stream_action = ACTION_FORWARD_DATA;
 			TFE_LOG_ERROR(logger()->handle, "Fatal upstream send error: %s, %d\n",nghttp2_strerror(xret), __LINE__);
 		}
@@ -2538,7 +2548,7 @@ detect_up_stream_protocol(struct tfe_h2_stream *h2_stream_info, const struct tfe
 	h2_stream_info->tf_stream = tfe_stream;
 	h2_stream_info->thread_id = thread_id;
 
-	if (!h2_stream_info->as_server)
+	if (!h2_stream_info->as_client)
 		goto forward;
 	readlen = nghttp2_session_mem_recv(h2_stream_info->as_client, data, len);
 	if (readlen < 0){