From e4f5fae4e73965d1160fb637f50269084e761c76 Mon Sep 17 00:00:00 2001
From: MatteoBiscosi <biscosi@ntop.org>
Date: Mon, 30 May 2022 18:05:55 +0200
Subject: [PATCH] Removed empty protocol info

---
 scripts/lua/modules/historical_flow_details_formatter.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/lua/modules/historical_flow_details_formatter.lua b/scripts/lua/modules/historical_flow_details_formatter.lua
index b23d104bdf..55a8e29d5c 100644
--- a/scripts/lua/modules/historical_flow_details_formatter.lua
+++ b/scripts/lua/modules/historical_flow_details_formatter.lua
@@ -313,6 +313,9 @@ function historical_flow_details_formatter.formatHistoricalFlowDetails(flow)
     local alert_json = json.decode(flow["ALERT_JSON"] or '') or {}
     if table.len(alert_json["proto"]) > 0 then
       flow_details[#flow_details + 1] = format_historical_proto_info(alert_json["proto"])
+      if table.len(flow_details[#flow_details]['content']) == 0 then
+        table.remove(flow_details, #flow_details)
+      end
     end
   end