HTTP 204 Response Returns Message-Body to Client

ID: Q246921

The information in this article applies to:

Microsoft Internet Information Services version 5.0

SYMPTOMS

When you browse an empty Active Server Pages (ASP) page, a message body is returned in addition to a 204 response.

CAUSE

This is by design. IIS usually returns "friendly" HTTP responses with error codes. However, in the case of a "204 No Content" error message, this is different from the HTTP/1.1 specification detailed in the Request For Comment (RFC) number 2616 as follows:

"The 204 response MUST NOT include a message-body, and thus is always terminated by the first empty line after the header fields."

WORKAROUND

When an empty page needs to be returned to client, use an empty text or HTML file (for example Empty.txt, Empty.htm, and so on).

MORE INFORMATION

For more information on this topic, please see section 10.2.5 of the HTTP/1.1 specification in RFC 2616 at the following URL:

http://www.w3.org/Protocols/rfc2616/rfc2616.html

Additional query words:

Keywords :
Version : winnt:5.0
Platform : winnt
Issue type : kbprb