How to use WP Super Cache and AdRotate

functions.php

<?php

/**
 * Custom banner handler for cache
 */
add_action('init', 'adrotate_request_handler');
function adrotate_request_handler() {
    if ( isset($_GET['adrotate_action']) && $_GET['adrotate_action'] == 'show' ) {
        // You can use adrotate_group or adrotate_ad
        // First param — ad group ID
        echo adrotate_group(1, 0, 0, 0);
        exit();
    }
}

scripts.js

/**
 * Custom theme functions file.
 *
 * Contains handlers for social sharing
 */
( function( $ ) {
  $( document ).ready( function() {
		$.ajax({
			type: 'GET',
			url: '/index.php',
			data: { adrotate_action: 'show' },
			success: function(response) {
				$('#adrotate_div').html(response);
			}
		});
	} );
} )( jQuery );

widgets.php

<?php
/**
 * Add custom div to text widget
 */
?>
<div id="adrotate_div"></div>