EMPTY

What it sends

Empty Cookie header value — tests parser resilience.

GET /echo HTTP/1.1\r\n
Host: localhost:8080\r\n
Cookie: \r\n
\r\n

Why it matters

Empty Cookie headers can cause null-reference exceptions or crashes in parsers that assume at least one key=value pair.

Verdicts

• Pass — 2xx or 400
• Fail — 500 (crash)

Sources

• RFC 6265 §5.4 — Cookie header