From eb1ed93540233f47dc6f012374e1894c9b32bebc Mon Sep 17 00:00:00 2001
From: nnposter <nnposter@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sun, 19 Oct 2025 19:13:24 +0000
Subject: [PATCH] Skip over empty content encoding placeholders

---
 nselib/http.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nselib/http.lua b/nselib/http.lua
index 4acbe28f6..2e3a3c61f 100644
--- a/nselib/http.lua
+++ b/nselib/http.lua
@@ -858,7 +858,10 @@ local decode_body = function (body, encodings, maxlen)
   local undecoded = tableaux.tcopy(encodings)
   while #undecoded > 0 do
     local enc = undecoded[1]:lower()
-    if enc == "identity" then
+    if enc == "" then
+      -- do nothing (empty encoding placeholder)
+      table.remove(undecoded, 1)
+    elseif enc == "identity" then
       -- do nothing
       table.insert(decoded, table.remove(undecoded, 1))
     elseif enc == "gzip" and have_zlib then