events: no stopPropagation call in cancelBubble

PR-URL: #50405 Reviewed-By: Matthew Aitken <maitken033380023@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Deokjin Kim <deokjin81.kim@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>

Author: mert.altin

lib/internal/event_target.js

@@ -306,7 +306,7 @@ class Event {
  if (!isEvent(this))
  throw new ERR_INVALID_THIS('Event');
  if (value) {
- this.stopPropagation();
+ this.#propagationStopped = true;
  }
  }
 

test/parallel/test-eventtarget.js

@@ -738,3 +738,10 @@ let asyncTest = Promise.resolve();
  controller.abort();
  et.dispatchEvent(new Event('foo'));
 }
+
+{
+ const event = new Event('foo');
+ strictEqual(event.cancelBubble, false);
+ event.cancelBubble = true;
+ strictEqual(event.cancelBubble, true);
+}