This plate
is blank.
The address does not name a page on this sheet. Nothing was dropped — it was never set.
—
Try the front plate, which counts one window; the guide, which is the whole route from install to a scrape; or the reference, which lists every public name.
HTTP/1.1 404 Not Found
content-type: text/html; charset=utf-8
cache-control: no-store
The library's own handler answers a path it does not know with
405, not 404: /metrics exists, and
the method was wrong. This page is the other case — the path was never
registered at all.