Submit Expedia scraping requests to the HMS scraper API. Downloads and XML save use the same endpoints as Postman and the live dashboard.
Why this page does not 504: Your old version ran the whole scrape inside PHP on this server — the reverse proxy in front of apicall.php usually times out around 60 s.
The form now runs in your browser: it starts an async job on the scraper (quick response), then polls progress every 2 s until done. No long PHP request.