Origin: request echo

Echo a POST back at you.

Whatever you send is reflected exactly as this origin received it — raw body, byte count and every request header. Any content type is accepted, up to 1 MB.

What the origin received

Values are HTML-escaped on output, so a payload is shown, never executed. The session cookie value is masked.

Nothing posted yet. Send the form above, or use curl.

From the command line

curl -X POST https://HOST/echo \
  -H 'Content-Type: application/json' \
  -d '{"hello":"world"}'