diff --git a/docs/cmdline-opts/write-out.d b/docs/cmdline-opts/write-out.d
index 11f01b87a2..df926a0490 100644
--- a/docs/cmdline-opts/write-out.d
+++ b/docs/cmdline-opts/write-out.d
@@ -22,9 +22,10 @@ output a newline by using \\n, a carriage return with \\r and a tab space with
 The output will be written to standard output, but this can be switched to
 standard error by using %{stderr}.
 
-You can also access HTTP headers of the most recent request done, with the
-help of \fB%header{name}\fP where \fBname\fP is the case insensitive name of
-the header (without trailing colon). Added in curl 7.83.0.
+Output HTTP headers from the most recent request by using \fB%header{name}\fP
+where \fBname\fP is the case insensitive name of the header (without the
+trailing colon). The header contents are exactly as sent over the network,
+with leading and trailing whitespace trimmed. Added in curl 7.83.0.
 
 .B NOTE:
 The %-symbol is a special symbol in the win32-environment, where all
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 5f5ba1bcc1..200e6af51c 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -209,6 +209,8 @@ test1630 test1631 test1632 test1633 test1634 \
 test1650 test1651 test1652 test1653 test1654 test1655 \
 test1660 test1661 \
 \
+test1670 \
+\
 test1680 test1681 test1682 test1683 \
 \
 test1700 test1701 test1702 test1703 \
diff --git a/tests/data/test1670 b/tests/data/test1670
new file mode 100644
index 0000000000..51af81a9ab
--- /dev/null
+++ b/tests/data/test1670
@@ -0,0 +1,58 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+-w
+%header
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data nocheck="yes">
+HTTP/1.1 200 OK
+Date: Tue, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 6
+Connection: close
+Content-Type: text/html
+Funny-head: yesyes
+
+-foo-
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+http
+</server>
+<name>
+-w individual header output
+</name>
+<command option="no-output">
+http://%HOSTIP:%HTTPPORT/%TESTNUMBER -w '%header{etag} %header{nope} %header{DATE}\n' -o log/%TESTNUMBER.out
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+GET /%TESTNUMBER HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+User-Agent: curl/%VERSION
+Accept: */*
+
+</protocol>
+<stdout mode="text">
+"21025-dc7-39462498"  Tue, 09 Nov 2010 14:49:00 GMT
+</stdout>
+</verify>
+</testcase>