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Verify servers handle headers case-insensitive #1050

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11 changes: 11 additions & 0 deletions scripts/validate.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -618,6 +618,17 @@ if has_test "baseline" || has_test "limited-conn" || has_test "api-4" || has_tes
$'POST /baseline11?a=13&b=42 HTTP/1.1\r\nHost: localhost\r\nContent-Type: text/plain\r\nContent-Length: 2\r\nConnection: close\r\n\r\n' \
"2" \
"0"

# Lower-cased header field names. HTTP field names are case-insensitive
# (RFC 9110 §5.1), so a server that only matches "Content-Length" and
# ignores "content-length" would fail to read the body length here. Only
# meaningful over HTTP/1.1: HTTP/2 and HTTP/3 mandate lowercase names on
# the wire, so that casing is already exercised by every h2/h3 request.
# curl can't be forced to emit uppercase, so this must go over the socket.
echo "[test] baseline lower-cased headers"
check_fragmented "POST /baseline11 — lower-cased content-length" "75" "$BASELINE_DOCS" \
$'POST /baseline11?a=13&b=42 HTTP/1.1\r\nhost: localhost\r\ncontent-type: text/plain\r\ncontent-length: 2\r\nconnection: close\r\n\r\n' \
"20"
fi

# ───── Pipelined (GET /pipeline) ─────
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