From 6deee2037dd76c7bc612a33d31dc5c8787427844 Mon Sep 17 00:00:00 2001
From: Dylan Plecki <dplecki@uber.com>
Date: Fri, 26 Jan 2018 18:49:08 -0800
Subject: [PATCH] Fix #1119: Stop overwrite of first header on mruby call to
 env.req.set_header(..)

---
 src/shrpx_mruby_module_request.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/shrpx_mruby_module_request.cc b/src/shrpx_mruby_module_request.cc
index dff99ce1..0cd0d038 100644
--- a/src/shrpx_mruby_module_request.cc
+++ b/src/shrpx_mruby_module_request.cc
@@ -246,8 +246,9 @@ mrb_value request_mod_header(mrb_state *mrb, mrb_value self, bool repl) {
         continue;
       }
       if (i != p) {
-        headers[p++] = std::move(kv);
+        headers[p] = std::move(kv);
       }
+      ++p;
     }
     headers.resize(p);
   }