Recorded local exchange for lab-site/note.txt, 2026-10-12.
Python 3.12.3 and curl 8.5.0. The header/body listing combines
separately captured response headers and body; it is not one verbatim
curl -i stdout record.
An earlier fetch of desk-note on port 8765
is a different file.

Command whose option includes headers in output
curl -i http://127.0.0.1:8000/note.txt

The handler's default protocol was HTTP/1.0. The response also sent
Server: SimpleHTTP/0.6 Python/3.12.3, a Date, and Last-Modified.
Last-Modified followed the file's modification time. Those three headers
are not needed for the interpretation below.

HTTP/1.0 200 OK
Content-type: text/plain
Content-Length: 11

owned note

Content-Length 11 is the byte length of lab-site/note.txt, including its final LF.
Content-type for this file was text/plain.
A request for /missing.txt returned HTTP/1.0 404 File not found.

Activity command
curl -o note-copy.txt http://127.0.0.1:8000/note.txt

Observed contents of note-copy.txt
owned note

Check: note-copy.txt
That file contains the body. The separate -i command requests headers as well.

python3 fetch-note.py against the same server
200
owned note

A file URL such as file:///home/desk/lab-site/note.txt reads the local file.
It is a different operation from the HTTP URL above.