From fa30a132a53196eec1ac731e332a075ba8b93991 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Tue, 19 Oct 2021 17:44:07 +0200
Subject: [PATCH] CORS: expose response headers by default

---
 src/mhd/mhd_responses.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mhd/mhd_responses.c b/src/mhd/mhd_responses.c
index c993436cd..d93381063 100644
--- a/src/mhd/mhd_responses.c
+++ b/src/mhd/mhd_responses.c
@@ -268,6 +268,11 @@ TALER_MHD_reply_cors_preflight (struct MHD_Connection *connection)
                                          /* Not available as MHD constant yet */
                                          "Access-Control-Allow-Methods",
                                          "*"));
+  GNUNET_break (MHD_YES ==
+                MHD_add_response_header (response,
+                                         /* Not available as MHD constant yet */
+                                         "Access-Control-Expose-Headers",
+                                         "*"));
 
   {
     MHD_RESULT ret;