allow-feed-through.php

<?php
/*
INSTRUCTIONS FOR THIS CODE:
On your RSS URL add &allow_feed=true to the end of it.
Then copy the below code and paste it into a plugin like My Custom Functions or Code Snippets on your site.
This will allow other plugins/sites to view the feed without the content blocks.
*/

function allow_feed_through($block, $post, $uri) {
  if(isset($_GET['allow_feed'])) {
    $block = false;
  }
  return $block;
}
add_filter('mepr-pre-run-rule-content', 'allow_feed_through', 11, 3);