function checkCartAbandonment() {
  fetch('/wp-admin/admin-ajax.php', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: 'action=check_cart_items'
  })
  .then(response => {
    if (!response.ok) {
      throw new Error('AJAX request failed: ' + response.statusText);
    }
    return response.json();
  })
  .then(data => {
    const hasItems = data && data.hasItems; // Check if data exists
    const hasShown = sessionStorage.getItem('cartAbandonmentShown');
    if (hasItems && !window.location.pathname.includes('/cart') && !window.location.pathname.includes('/checkout') && !hasShown) {
      showPopup('cart-abandonment-popup');
      sessionStorage.setItem('cartAbandonmentShown', 'true');
    }
  })
  .catch(error => {
    console.error('Error in checkCartAbandonment:', error);
    // Prevent the error from breaking the page
  });
}

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<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/sarkarhealings/public_html/wp-content/themes/kadence-child/functions.php:437) in <b>/home/sarkarhealings/public_html/wp-includes/pluggable.php</b> on line <b>1450</b><br />
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<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/sarkarhealings/public_html/wp-content/themes/kadence-child/functions.php:437) in <b>/home/sarkarhealings/public_html/wp-includes/pluggable.php</b> on line <b>1453</b><br />