This will require some editing of your wp-content/themes/comicpress/functions/syndication.php file

Open up that file on your hosting and replace it with the code available here:

https://github.com/Frumph/comicpress/blob/master/functions/syndication.php

^ the github repo is where I store the latest of every edit I make, bug fixes and what not

If you are logged into github you can find a “zip” button to download the latest full master copy at http://github.com/Frumph/comicpress

Once you are done replacing that bit of code, you edit a post, save it which then updates your feed (clears your feed cache) then go to feedburner and click the resync button in your admin panel for feedburner

- Phil

NOTE: For older ComicPress versions, just replace this portion of the syndication.php file:

if (!function_exists('comicpress_insert_comic_feed')) {
	function comicpress_insert_comic_feed($content) {
		global $wp_query, $post;
		$category = get_the_category($post->ID);
		if (comicpress_in_comic_category($category[0]->cat_ID)) {
			$content = comicpress_comic_feed().$content;
		}
		return apply_filters('comicpress_insert_comic_feed', $content);
	}
}

add_filter('the_content_feed','comicpress_insert_comic_feed');
add_filter('the_excerpt_rss','comicpress_insert_comic_feed');



For ComicPress 2.8 open the syndication.php file and replace this:

//Insert the comic image into the RSS feed
function comicpress_comic_feed() {
global $post, $comicpress_options; ?>
<p><a href="<?php the_permalink() ?>"><?php echo comicpress_display_comic_image('rss,comic',$comicpress_options['enable_post_thumbnail_rss']); ?></a></p><?php
}

With this:

//Insert the comic image into the RSS feed
function comicpress_comic_feed() {
global $post, $comicpress_options; ?>
return '<p><a href="'.get_permalink().'">'.comicpress_display_comic_image('rss,comic',$comicpress_options['enable_post_thumbnail_rss']).'</a></p>';
}

Again what you’re doing is ‘returning’ info instead of echo’ing it out.
P.S. change the add_action for the_content to the_content_feed and the_excerpt_rss like the top example, just not the function name after it



For WAYYYY OLD Comicpress’

   echo "<p><a href=\"";
    the_permalink();
    echo "\"><img src=\"$siteurl/$filename\" border=\"0\" alt=\"Cartoon 
thumbnail - ";
        the_title();
        echo " - CLICK for full cartoon\" /></a></p>";

replace that section with this line (all on one line):

return  '<p><a href="'.get_permalink().'"><img 
src="'.$siteurl.'/'.$filename.'" border="0" alt="Cartoon Thumbnail - 
'.get_the_title().' - Click for FULL Cartoon." /></a></p>';

The idea is to remove the ECHO’s and make it all RETURN

For ComicPress 2.5:
in the functions.php search for this:

function comic_feed() {
  echo "<p><a href=\"";
  the_permalink();
  echo "\"><img src=\"";
  echo get_comic_url('rss');
  echo "\" border=\"0\" alt=\"";
  echo the_title();
  echo "\" /></a></p>";
} 

replace it with this:

function comic_feed() {
  return '<p><a href="'.get_permalink().'" title="'.get_the_title().'"><img src="'.get_comic_url('rss').'" border="0" alt="'.get_the_title().'" title="'.get_the_title().'"></a></p>';
}