fix(widget): Replace DOMSubTreeModified with MutationObserver

DOMSubTreeModified has been deprecated since years and stopped working in recent Chrome builds.
moreonion · Nov 14, 2024 · 8d14329 · 8d14329
1 parent dc1ff2a
commit 8d14329
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/campaignion_webform_widget/js/widget.js b/campaignion_webform_widget/js/widget.js
@@ -56,11 +56,12 @@ window.addEventListener("DOMContentLoaded", function() {
   messageParent(false);
 });
 
+// Update iframe size after AJAX requests.
 window.onload = function() {
   messageParent(false);
-  window.addEventListener("DOMSubtreeModified", function() {
+  (new MutationObserver(function() {
     messageParent(false);
-  }, true);
+  })).observe(document.body, { subtree: true, childList: true });
 }
 
 window.onresize = function() {