change to redirect entire path

Former-commit-id: 7a3f9869

.ci/.autoRedirect

@@ -15,8 +15,15 @@
         });
     }
     UrlExists('https://r3-core.pages.uni.lu/howto-cards-internal/index.html', function(status){
-        var pathArray = window.location.pathname.split('/');
-        var sub = pathArray[1];
+        var s = window.location.pathname;
+        var pathArray = s.split('/');
+
+        // cut the entire subdomain path
+        if (pathArray[0].length > 0) {
+            sub = s.substr(pathArray[0].length+1);
+        } else {
+            sub = '';
+        }
 
         if(status === 200){
             // internal pages