From review:
- /api/osm/features now refuses cross-site browser requests like the other
quota-bearing routes, so a page elsewhere cannot spend the operator's
Overpass. SECURITY.md lists the route, its limits and its disk cache.
- One client runs one search at a time and two run at once in all, instead
of one global slot any single client could hold.
- A search gets 45 s across every configured endpoint in turn, answered 504
when it runs out.
- A cache write no longer waits on the disk prune; prune() waits until the
cache is idle for callers that need it.
Manjunath
fb74354d30