LEGACY origin

Payment

Path:

Query:

X-Served-By: …

Proof links (expected result):

• /Checkout — uppercase still routes to NEW
• /%63heckout — percent-encoded still routes to NEW
• /checkout?step=2&promo=POC — query string preserved on NEW
• /checkout/ — trailing-slash 308 lands on the proxy host, not pages.dev
• /promo — LEGACY redirect into a migrated path, lands on NEW
• /checkout/old — relative redirect within NEW
• /checkout/absolute — absolute pages.dev redirect rewritten to the proxy host
• /no-such-page — LEGACY 404 page with a real 404 status
• /checkout/no-such-page — NEW 404 page with a real 404 status