Fix for Lootly w/ Oxygen theme

lootly-wp.php

<?
// In themes with do not call the get_footer action, this JavaScript will add the required Div.


        $handle = 'lootly-create-div-script';
	    wp_register_script( $handle, '', array(), '1.2.3', true );
	    wp_enqueue_script( $handle );

	    $lootly_customer_id ='';
        $lootly_customer_signature = '';
        $api_key = lootly()->options->getOption('api_key');
        $api_secret = lootly()->options->getOption('api_secret');
        $lootly_shop_domain = get_site_url();
        $lootly_shop_signature = md5($lootly_shop_domain.$api_secret);
        if(get_current_user_id()){
            $lootly_customer_id = get_current_user_id();
            $lootly_customer_signature = md5($lootly_customer_id.$api_secret);
        }

        $lootly_div_data = array(
            'id' => 'lootly-widget',
            'class'=>'lootly-init',
            'style' => array(
                'display' => 'none'
            ),
            'data' => array(
                'provider'=>esc_url(lootly()->api->endpoint),
                'api-key' => esc_html($api_key),
                'shop-domain' => esc_url($lootly_shop_domain),
                'shop-id' =>  $lootly_shop_signature,
                'customer-id' => $lootly_customer_id,
                'customer-signature' => $lootly_customer_signature,
            )
        );

	    $lootly_div_data_json = wp_json_encode( $lootly_div_data );
	    $script = <<<EOD
    var lootlyDivData = $lootly_div_data_json;
    jQuery(document).ready(function($) {
        var lootlyDiv = $('<div />').appendTo('body');
        lootlyDiv.attr('id', lootlyDivData.id);
        lootlyDiv.attr('class', lootlyDivData.class);
        lootlyDiv.attr('id', lootlyDivData.id);
        for (const key in lootlyDivData.style) {
            lootlyDiv.css(key, lootlyDivData.style[key]);
        }
        for (const key in lootlyDivData.data) {
            lootlyDiv.attr('data-'+key, lootlyDivData.data[key]);
        }
    });
EOD;

	    wp_add_inline_script($handle, $script );