diff --git a/conf/nginx.conf.in b/conf/nginx.conf.in
index 18bbb2b093..a2476d7221 100644
--- a/conf/nginx.conf.in
+++ b/conf/nginx.conf.in
@@ -74,7 +74,7 @@ server {
         location ~ ^/api {
             proxy_pass http://api_server;
             proxy_read_timeout ${TIMEOUT}s;
-            add_header Access-Control-Allow-Origin ${DOLLAR}allow_origin;
+            add_header Access-Control-Allow-Origin ${DOLLAR}allow_origin always;
         }
 
         proxy_pass http://ui_server;
diff --git a/docs/changelog.rst b/docs/changelog.rst
index bc8e40b863..15495e5c2b 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -25,6 +25,8 @@ CHANGELOG
 - ApidaeTrekParser now handles missing source website
 - Fix Aggregator does not retrieve unpublished Tour Steps (#3569)"
 - Fix missing Annotation Categories in APIv2 for annotations other than Points (#4032)"
+- Change default CORS configuration to 'always' : see https://github.com/GeotrekCE/Geotrek-rando-v3/issues/1257
+
 
 **Documentation**