diff --git a/web/app.js b/web/app.js
index f810bda..2096ba5 100644
--- a/web/app.js
+++ b/web/app.js
@@ -70,9 +70,12 @@ function loadGroups() {
 
 function getSelectedTargets(group) {
   var targets = [];
-  group.querySelectorAll('.target-cb:checked').forEach(function (cb) {
-    targets.push(cb.dataset.domain);
-  });
+  var boxes = group.querySelectorAll('.target-cb');
+  for (var i = 0; i < boxes.length; i++) {
+    if (boxes[i].checked) {
+      targets.push(boxes[i].getAttribute('data-domain'));
+    }
+  }
   return targets;
 }