had the same problem myself and only found out by chance: the function only returns a value so you have to output it yourself:
<?php echo get_category_feed_link('78',''); ?>
that should do the trick, good luck!
had the same problem myself and only found out by chance: the function only returns a value so you have to output it yourself:
<?php echo get_category_feed_link('78',''); ?>
that should do the trick, good luck!