fix and update

install.sh

@@ -1102,6 +1102,11 @@ derive_public_urls() {
 
   if [[ "$ssl_type" == "letsencrypt" || "$ssl_type" == "selfsigned" || "$ssl_type" == "custom" ]]; then
     env_set FEDCM_COOKIE_SECURE "true"
+    local fedcm_apex
+    fedcm_apex="$(registrable_domain "${DOMAIN_FRONTEND:-$DOMAIN_API}")"
+    if [[ -n "$fedcm_apex" && "$fedcm_apex" != "localhost" ]]; then
+      env_set FEDCM_COOKIE_DOMAIN ".${fedcm_apex}"
+    fi
   fi
 
   SSL_TYPE="$ssl_type"