diff --git a/Docker/utils.sh b/Docker/utils.sh
index 92f4320..95b4367 100644
--- a/Docker/utils.sh
+++ b/Docker/utils.sh
@@ -254,5 +254,5 @@ get_http_status(){
 is_http_error(){
   _url="$1"
   status=$(get_http_status "$_url")
-  [ "${status:0:1}" = "4" ]
+  [ "${status:0:1}" = "4" ] || [ "${status:0:1}" = "0" ]
 }