From c5e8d919da0a5a6825c154a3296934edaf470395 Mon Sep 17 00:00:00 2001
From: Jorik Schellekens <joriks@matrix.org>
Date: Thu, 22 Aug 2019 13:45:08 +0100
Subject: [PATCH] Headers were the wrong type

---
 synapse/replication/http/_base.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py
index a47b1631fc31..4d0869ef4ade 100644
--- a/synapse/replication/http/_base.py
+++ b/synapse/replication/http/_base.py
@@ -167,8 +167,8 @@ def send_request(**kwargs):
                 # have a good idea that the request has either succeeded or failed on
                 # the master, and so whether we should clean up or not.
                 while True:
-                    headers = Headers()
-                    opentracing.inject_active_span_twisted_headers(
+                    headers = {}
+                    opentracing.inject_active_span_byte_dict(
                         headers, None, check_destination=False
                     )
                     try: