Microsoft KB Archive/291435

= HTTP Headers Are Truncated or Incomplete When You Access a Site Through Proxy Server =

Article ID: 291435

Article Last Modified on 8/10/2007

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APPLIES TO


 * Microsoft Proxy Server 2.0 Standard Edition

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This article was previously published under Q291435



SYMPTOMS
When you access a site through Proxy Server 2.0, you may encounter incomplete or truncated headers in the response. This may manifest as missing cookies or as cookies that are visible as content in the browser.



CAUSE
This problem occurs because Proxy Server 2.0 has a limit of approximately 3.5 kb for the header portion of the response. Any cookies or headers that exceed this size are effectively treated as content and are forwarded to the browser as such.



WORKAROUND
To work around this problem, make sure that the cookies/headers combination does not exceed 3.5 kb.



RESOLUTION
A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

  Date      Time     Version     Size    File name     Platform -  13/04/2001  10:20  2.0.390.16   43,280 W3pcache.dll  x86 13/04/2001 10:20  2.0.390.16  191,248 W3proxy.dll   x86



STATUS
Microsoft has confirmed that this is a problem in Proxy Server 2.0.

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB291435

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