I found this code in td_block.php:

case 'load_more':
//if ($this->td_query->found_posts > $limit) {
if ($this->td_query->found_posts - $offset > $limit) {
$buffy .= '<div class="td-load-more-wrap">';
$buffy .= 'block_uid . '" data-td_block_id="' . $this->block_uid . '">' . __td('Load more', TD_THEME_NAME);
$buffy .= '<i class="td-icon-font td-icon-menu-down"></i>';
$buffy .= '';
$buffy .= '</div>';
}
break;

How do I know what changes to URL it’s doing behind the scenes?
How do I get those changes to show up in URL bar of the browser?