diff --git a/platform/src/ssl_stream.cpp b/platform/src/ssl_stream.cpp
index e5371fe..6f203f9 100644
--- a/platform/src/ssl_stream.cpp
+++ b/platform/src/ssl_stream.cpp
@@ -1383,7 +1383,7 @@ static SSL * downstream_ssl_create(struct ssl_mgr * mgr, struct keyring * crt, c
 		SSL_CTX_set_tmp_ecdh(sslctx, ecdh);
 		EC_KEY_free(ecdh);
 	}
-	if(!mgr->no_alpn)
+	if(!mgr->no_alpn && selected_alpn)
 	{
 		SSL_CTX_set_alpn_select_cb(sslctx, alpn_select_proto_cb, (void*)selected_alpn);
 	}
diff --git a/plugin/business/pangu-http/src/pangu_http.cpp b/plugin/business/pangu-http/src/pangu_http.cpp
index 1c0fd4d..41e91b2 100644
--- a/plugin/business/pangu-http/src/pangu_http.cpp
+++ b/plugin/business/pangu-http/src/pangu_http.cpp
@@ -1215,7 +1215,7 @@ void pangu_on_http_data(const struct tfe_stream * stream, const struct tfe_http_
 			}
 		}
 
-		if(tfe_http_in_response(events))
+		if(tfe_http_in_response(events)&& ctx->pending_result==PENDING_RESULT_MISS)
 		{
 			cache_update(session, events, body_frag, frag_size, thread_id, ctx);
 		}