diff --git a/plugin/business/pangu-http/src/pangu_http.cpp b/plugin/business/pangu-http/src/pangu_http.cpp
index bcef5cb..c671bc2 100644
--- a/plugin/business/pangu-http/src/pangu_http.cpp
+++ b/plugin/business/pangu-http/src/pangu_http.cpp
@@ -1002,6 +1002,7 @@ static void http_redirect(const struct tfe_http_session * session, enum tfe_http
 
 	response = tfe_http_session_response_create(to_write, resp_code);
 	tfe_http_std_field_write(response, TFE_HTTP_LOCATION, url);
+	tfe_http_std_field_write(response, TFE_HTTP_CONT_LENGTH, "0");
 	tfe_http_half_append_body(response, NULL, 0, 0);
 
 	tfe_http_session_response_set(to_write, response);
diff --git a/plugin/protocol/http/src/http_half.cpp b/plugin/protocol/http/src/http_half.cpp
index f37314e..29048da 100644
--- a/plugin/protocol/http/src/http_half.cpp
+++ b/plugin/protocol/http/src/http_half.cpp
@@ -1090,7 +1090,7 @@ void hf_private_construct(struct http_half_private * hf_private)
 		hf_content_compress_write(hf_private->cv_compress_object, NULL, 0, hf_private->evbuf_body, 1);
 	}
 
-	if (hf_private->content_encoding != HTTP_ACCEPT_ENCODING_NONE)
+	if (hf_private->evbuf_body && hf_private->content_encoding != HTTP_ACCEPT_ENCODING_NONE)
 	{
 		const char * __str_content_encoding = __hf_content_encoding_to_str(hf_private->content_encoding);
 		const static struct http_field_name __cont_encoding_type_name = {TFE_HTTP_CONT_ENCODING, NULL};