Bridging Cookies Before Checkout Handoff

What This Step Does

Cookie Bridging persists browser identifiers in a place that survives checkout handoff and is readable by backend webhook processing.

Dummy Example

const attributes = [
  { key: "_ga", value: "GA1.1.1234567890.1234567890" },
  { key: "_origin_site", value: "example-store" }
];

await fetch("/api/cart/update-attributes", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ cartId: "dummy-cart-id", attributes }),
});

This is a dummy sample. Never expose production keys, IDs, or environment variable names.

Implementation Notes

• Use fail-open: do not block checkout if save fails
• Enforce allowlist keys and value length limits
• Keep logs free of PII and secrets