Google follows "Show reviews in all languages " link and indexes URLs with "?clang=all"

Overview of the issue

WPML Multilingual & Multicurrency for WooCommerce generates a link with the parameter ?clang=all. Ideally, this URL would not be indexed by Google, but it is crawlable by default.

Workaround

1. Make a full backup of your site.
2. Edit this file: wp-content/plugins/woocommerce-multilingual/inc/class-wcml-comments.php
3. Look for the Line 207.
   • Change:

     echo '<p><a id="lang-comments-link" href="' . $comments_link . '">' . $comments_link_text . '</a></p>';

   • To:

     echo '<p><a id="lang-comments-link" href="' . $comments_link . '" rel="nofollow">' . $comments_link_text . '</a></p>';