From 3aa0f12f41b37d30556a7a0e55bde4ffde54d029 Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Tue, 13 Oct 2020 11:55:28 +0100 Subject: net.http.server: Don't send Content-Length on 1xx/204 responses, per RFC (fixes #1596) --- net/http/server.lua | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/http/server.lua b/net/http/server.lua index 18704962..3873bbe0 100644 --- a/net/http/server.lua +++ b/net/http/server.lua @@ -295,7 +295,10 @@ _M.prepare_header = prepare_header; function _M.send_response(response, body) if response.finished then return; end body = body or response.body or ""; - response.headers.content_length = #body; + -- Per RFC 7230, informational (1xx) and 204 (no content) should have no c-l header + if response.status_code > 199 and response.status_code ~= 204 then + response.headers.content_length = #body; + end local output = prepare_header(response); t_insert(output, body); response.conn:write(t_concat(output)); -- cgit v1.2.3