.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
-.\" * are also available at http://curl.haxx.se/docs/copyright.html.
+.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
set the Referer: header in the http request sent to the remote server. This
can be used to fool servers or scripts. You can also set any custom header
with \fICURLOPT_HTTPHEADER(3)\fP.
+
+The application does not have to keep the string around after setting this
+option.
.SH DEFAULT
NULL
.SH PROTOCOLS