For the record, this looks like it’s yet another regression that was introduced by revision 1280 (tab switching animation improvements). The preview image gained a negative top margin of the height of the tab chrome, which would explain the issue (it doesn’t explain why the issue is not apparent for all tabs though).
** Changed in: webbrowser-app (Ubuntu) Assignee: (unassigned) => Olivier Tilloy (osomon) ** Changed in: webbrowser-app (Ubuntu) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1520624 Title: some tab previews are missing their handles and close buttons To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1520624/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs