THere is a bug in the code for the Related Posts WP plugin. When readers attempt to access my site using an iPhone they often get redirect errors.
Here is the documentation from my host’s support staff:
“When you dump the cache the links on the iPhone work fine. As soon as the related posts plugin throws a query string at the end of the URL and gets cached it causes a redirect loop on mobile devices.
./wp-content/plugins/wordpress-23-related-posts-plugin/wp_related_posts.php:define('WP_RP_AB_TEST_PARAM', 'wprptest2');
./wp-content/plugins/wordpress-23-related-posts-plugin/wp_related_posts.php:define('WP_RP_AB_TEST_COOKIE', 'wprptest2');
If you visit any post on a mobile device you will notice ?wprptest2=0 in the query string - This is what is causing the issue in mobile.”