diff --git a/misc/containers/backend/env.local b/misc/containers/backend/env.local
index 9003097..642e004 100644
--- a/misc/containers/backend/env.local
+++ b/misc/containers/backend/env.local
@@ -1,2 +1,3 @@
 TRUSTED_HOSTS='^(localhost|127.0.0.1)$'
-DATABASE_URL=mysql://logo:logo@database:3306/logo?server_version=mariadb-10.4.12
\ No newline at end of file
+DATABASE_URL=mysql://logo:logo@database:3306/logo?server_version=mariadb-10.4.12
+CORS_ALLOW_ORIGIN=^https?://(localhost|127\.0\.0\.1)(:[0-9]+)?$
\ No newline at end of file