diff --git a/docker-compose.yaml b/docker-compose.yaml
index ef25390..6abc123 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -9,6 +9,11 @@ services:
       - traefik.port=3000
       - traefik.frontend.passHostHeader=true
       - traefik.enable=true
+      - traefik.http.middlewares.testheader.headers.accesscontrolallowmethods=GET,OPTIONS,PUT
+      - traefik.http.middlewares.testheader.headers.accesscontrolallowheaders=*
+      - traefik.http.middlewares.testheader.headers.accesscontrolalloworiginlist=https://chaospott.de
+      - traefik.http.middlewares.testheader.headers.accesscontrolmaxage=100
+      - traefik.http.middlewares.testheader.headers.addvaryheader=true
     networks:
       - extern