Event Receipt : iCalendar link goes to Joomla admin site instead of front end

Event Receipt : iCalendar link goes to Joomla admin site instead of front end.

Currently, templates/CRM/Event/Form/Registration/ReceiptMessage.tpl using the following code to format the link. This does not work at all for Joomla.

{assign var="icalFeed" value=$config->userFrameworkBaseURL|cat:"civicrm/event/ical?reset=1&id="|cat:$event.id}

Probably best to create a link in the PHP code which will work for both Drupal AND in Joomla sites will direct to joomla front-end url, then assign to the tpl. The format for joomla s/b:

http://<joomla site>/index.php?option=com_civicrm&task=civicrm/event/ical&reset=1&id=1