This page is intended to let you debug the use of a URL, by letting
you compose your own request (including optional "POST" data),
and by letting you see the header part of the result (e.g. to see the
server version, or auxiliary fields such as expiry time). The request
is sent using the "POST" method if the post data is non-empty, and
otherwise it uses the "GET" method. Only the first
10000 bytes of the result are displayed.
The program does not url-encode the URL,
nor does it encode post data.
You should make post data x-www-form-urlencoded if needed.