On our development SP2013 farm, I have enabled Blobcache according to MSDN.

I simply changed the line to enabled=true and create a folder c:\Blobcache.

After some days, I found there is nothing in c:\Blobcache and when I check back web.config, the line of BlobCache have been changed back to default. The Enabled attirube become "False" as default.

What kind of action will cause the change? Do I missed some setup to make attribute fixed? Thanks for advice.


Did you uninstall a solution in the meanwhile?

There is some kind of web.config versioning going on in SharePoint when you install and uninstall a new SharePoint solution package.

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  • Yes! I was debug some solution using visual studio 2013. So Visual Studio disable the Blobcache for me? If so it should be a bug. – Mark L Jul 21 '14 at 2:25
  • Not really a bug. If you uninstall a rollback logic will take place. Since you edited the current web.config file directly, the rollback will (incorrectly) conclude that the change in blobcache was a change done together with the installation of the latest solution. When uninstalling the latest solution the change in the blobcache setting will also be rolled back to the previous state. – Wout Jul 22 '14 at 6:11

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