Meta Pixel fbq('track', 'AddToCart') outside sandbox

analytics.subscribe('product_added_to_cart', (event) => {
  const { cartLine } = event.data;
  if (!cartLine) return;

  const value = cartLine.cost.totalAmount.amount;
  const currency = cartLine.cost.totalAmount.currencyCode;
  const variant = cartLine.merchandise;

  fetch(`https://graph.facebook.com/v20.0/PIXEL_ID/events?access_token=ACCESS_TOKEN`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    keepalive: true,
    body: JSON.stringify({
      data: [{
        event_name: 'AddToCart',
        event_time: Math.floor(Date.now() / 1000),
        action_source: 'website',
        custom_data: {
          value,
          currency,
          content_ids: variant && variant.id ? [variant.id] : [],
          content_type: 'product',
          contents: [{ id: variant && variant.id, quantity: cartLine.quantity }],
        },
      }],
    }),
  });
});

Legacy pattern detected via: fbq\(\s*['"]track['"]\s*,\s*['"]AddToCart['"]