Post cache substitution is not compatible with modules in the IIS integrated pipeline that modify the response buffers. Cancel

1. El Barto

   

   2 posts
   Registered:
   28 Apr 2008
   23 Jun 2012

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   Today I upgraded my Sitefinity project to version 5.0.2860.0 Unfortunately this didn't work as expected. When I login everything seems to work as expected, but as soon I logout I get the exception underneath. I get this exception on every page except the login page. As soon as I login everything works as expected again. What have I done wrong in the upgrade?
   
   
   

   Post cache substitution is not compatible with modules in the IIS integrated pipeline that modify the response buffers.  Either a native module in the pipeline has modified an HTTP_DATA_CHUNK structure associated with a managed post cache substitution callback, or a managed filter has modified the response.
2. Jochem Bökkers

   

   155 posts
   Registered:
   13 Aug 2007
   25 Jun 2012

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   Hey El Barto,
   
   This happens because of a default setting in the web.config in v5.0 (which will be removed in the next versions)
   

   <urlCompression

    doDynamicCompression="true"

    doStaticCompression="true"

    dynamicCompressionBeforeCache="set this to false instead of true"/>

   
   

   Check the dynamicCompressionBeforeCache line in your web.config, it probably is set to true, once set to false everything works again. 
   
   Jochem
   Answered


3. El Barto

   

   2 posts
   Registered:
   28 Apr 2008
   25 Jun 2012

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   That solved it. Thanks Jochem
4. CadPilot

   

   0 posts
   Registered:
   09 Dec 2005
   03 Jul 2012

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   Thanks for this...got me running on arvixe after considerable consternation.