"Connection: Close" Headers Stripped from HttpAddRequestHeaders or HttpSendRequest (259984)


The information in this article applies to:

  • Microsoft Internet Explorer 5.01 for Windows NT 4.0
  • Microsoft Internet Explorer 5.01 for Windows 98
  • the operating system: Microsoft Windows 2000
  • Microsoft Windows Internet Services (WinInet)
This article was previously published under Q259984

SYMPTOMS

When you use the WinInet Application Programming Interface (API) HttpAddRequestHeader or HttpSendRequest call to add a "Connection: Close" header to force a non-persistent HTTP connection, the "Connection: Close" header may be stripped from the request before it is sent to the remote server.
For example, the following sample code may send the request without the "Connection: Close" header: 
sHeader = "Connection: close"
iRetVal = HttpSendRequest(hHttpOpenRequest, sHeader, Len(sHeader), 0, 0)

CAUSE

This behavior occurs if the request is sent as an HTTP/1.1 request.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

MORE INFORMATION

For more information about HTTP persistent connections, see the "Hypertext Transfer Protocol -- HTTP/1.1" RFC at the following Web site:

http://www.rfc-editor.org/rfc/rfc2616.txt

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Modification Type:MajorLast Reviewed:12/3/2003
Keywords:kbprb KB259984
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