[josebueso]

Originally Posted by aim

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The next-prev products feature works correctly on your site.

This is a code from the get_block.php

if (
    !func_is_ajax_request()
    || !isset($block)
    || empty($block)
    || !is_string($block)
    || !preg_match('/^[\w\d_]+$/Ss', $block)
) {
    func_ajax_set_error('Bad request');

    exit;
}

Hello Ildar

Thanks for your prompt response.
Your are telling me not to worry about it? I compared the code you posted above with the get_block.php in my site and is the same.

Thanks for your help.
Jose