Bypass Cache on Comment Post

Workaround for ByPassing Cache on Comment Post.php

<?php
/**
  * Special condition: If your WordPress has a settings to automatically approve all comments without a manual approval
  * In this case, Cloudflare plugin may not purge the cache.
  * This is a quick-workaround. After adding this snippet,
  * you need to create a rule to bypass the Cache for comment-posted=true query string
*/  

add_filter( 'comment_post_redirect', 'redirect_after_comment' );
function redirect_after_comment( $location ) {
    $location = add_query_arg( array( 'comment_posted' => 'true' ), $location );
    return $location;
}